How ‘Mechanisation’ at VDNKh Became ‘Cosmos’: The Story of Pavilion No. 34

Pavilion No. 34 at VDNKh was built to display agricultural machinery, while the exhibition’s official history dates its present name and permanent thematic exhibition to 1967. Meanwhile, the authors of a restoration study published in 2017, and a 2025 historical and cultural assessment report date the pairing of “Cosmos” and “Mechanical Engineering” to 1963. The sources make it possible to distinguish the building’s construction from changes to its exhibits, and an early space section from the renaming of the entire pavilion. None of the materials examined contains a dated order that would explain the discrepancy between the two dates.

That distinction matters to the history of VDNKh’s “Mechanisation” pavilion. In 1939 it was a hangar open at both ends; in 1954 it acquired its present monumental façade and domed hall; and by 1965 a model of the Vostok spacecraft was on display beneath the dome. At the same time, the exhibition had another space with the same name. Reports of a space theme appearing at VDNKh therefore do not establish exactly when the pavilion beside Industry Square became “Cosmos”.

What was the “Mechanisation” pavilion like in 1939?

Opened alongside the All-Union Agricultural Exhibition on 1 August 1939, the pavilion was a long steel hangar open at both ends. Visitors could walk through it along the axis of the Main Alley towards the ponds. It was designed by Viktor Andreyev, Ivan Taranov and Nadezhda Bykova; the present façade with its towers and the domed hall did not yet exist. This is how the original structure is described in VDNH And the heritage protection document.

The building’s openness served a practical purpose as well as creating a striking effect. Tractors, agricultural machinery and cars were displayed in the hangar; conveyors moved the machines on the upper levels. Steel and glass arches gave visitors a view of the exhibits while preserving the vista along the alley. The architecture presented the movement of machinery itself as an achievement of mechanisation. The post-war dome makes it easy to imagine a space exhibition here from the outset, but that would be a false picture of 1939.

Before the present building, a different “Mechanisation” pavilion stood on this site. Built in 1937 to a design by Vyacheslav Oltarzhevsky, it was dismantled in 1938. The sequence recorded in the historical and cultural assessmentmatters: the surviving monument’s architectural history begins with the 1939 building, although the idea of an exhibition space on this site is older.

The original building’s layout helped present both individual tractors and the structure of the industry as a whole. According to VDNKh’s description, the lower level was divided into four halls devoted to tractor manufacturing, agricultural machinery, car manufacturing, and the use of chemistry and aviation in agriculture. In 1939, however, aviation meant the use of aircraft in farming, not a preview of the future exhibition.

A trace of an even earlier building survives beneath the present one. During restoration, specialists discovered a fascine — a bundle of branches used in the foundations of the wooden pavilion designed by Vyacheslav Oltarzhevsky in 1937. VDNKh described the find separately from the 1939 structure. The chronology requires three things to be distinguished: the site used to display agricultural machinery, its temporary wooden predecessor, and the surviving monument begun two years later.

What changed during the 1954 reconstruction?

For the exhibition’s reopening, the architects retained the long hangar hall but added a grand entrance with two faceted towers, a domed hall and two-storey wings. From 1954 to 1956, the pavilion bore the name “Mechanisation and Electrification of Agriculture in the USSR”. It was then that the building acquired the silhouette familiar to visitors to Industry Square. The protected monument combines sections built in 1939 and 1954, with its most recognisable features dating from the latter phase.

In the restorers’ publication also explains why the building was remodelled. The open-ended hangar was unused from 1941 to 1949; it needed major repairs before it could be used again, and its open ends made it difficult to operate in the local climate. In 1954, Viktor Andreyev and Ivan Taranov, who had worked on the 1939 design, joined the earlier structure to an enclosed entrance section and a domed hall. The façade helped solve the practical problem of creating an enclosed exhibition space; it did not anticipate the later space theme.

The heritage protection document lists more than walls and metal structures. Its protected features include sculptures on the towers, reliefs depicting the mechanisation and electrification of agriculture, the layout of the hangar hall, the dome and interior details. This explains what may at first seem an odd juxtaposition: a building with a space-related name still bears images of mechanised farming on its façade. They were not created as decoration for a space exhibition; they survive from the pavilion’s earlier programme.

Official publications disagree about the origins of the star-shaped chandelier installed in 1954. The VDNKh Museum And and a report on the restoration describe it as the actual star that adorned the Kremlin’s Trinity Tower from 1935 to 1937; a VDNKh anniversary article — as a copy of the Kremlin star. The old light fitting was later removed and lost, while the present one was recreated in 2017. Nikolai Tomsky’s composition “The March of Soviet People Towards Communism”, in the same hall, has also been lost. The sources do not allow the 1954 star to be called either an original or a copy without qualification.

Measurements published by Moscow restorers, help distinguish the pavilion’s two sections. The 1939 hangar hall measures 122 × 48.4 metres in plan; the domed hall added in 1954 measures 51 × 51 metres, rises to 58 metres, and has a glazed dome 42 metres in diameter. Parts of the 1939 hangar’s vaulted roof with glass inserts survive, while the glazed dome was built over the 1954 extension. These dimensions explain why the listed building bears both dates, 1939 and 1954: a separate, lofty space for large exhibits was added to the long exhibition hall.

The entrance towers bear figures of a male machine operator and a woman at the controls of a combine harvester. Their agricultural imagery preserves the theme of 1954, even after the name ‘Cosmos’ appeared on the building. Seen from Industry Square, the façade is therefore the result of several changes, rather than a single composition devoted to space: architects in the mid-1950s created the façade, and designers in 1967 added a new name and graphics. There is no reason to assume that the sculptures ever represented rocket technology.

The reconstruction did not erase the entire 1939 pavilion. The original hangar hall remains at the heart of today’s building; specialists identify it and the later domed hall as successive stages of a single structure. That is why its heritage records give two dates: 1939 and 1954. They date the surviving parts of the building; they are not competing answers to when the space exhibition began. The architectural and exhibition histories intersect here, but they do not follow the same timeline.

Why did engineering replace agricultural machinery?

In 1956, the pavilion was renamed ‘Engineering’ for the opening of the industrial exhibition. The name reflected a change in its programme: its halls displayed cars and equipment from various industries. Large exhibits filled the same space that the architects had expanded two years earlier.

The 1956 renaming was linked to the way VDNKh was organised. At the time, agricultural and industrial exhibitions operated on the same site, and the former Mechanization pavilion became the centre of the industrial exhibition. A published excerpt from Pavel Nefedov’s study of VDNKh lists technologies from the coal, electrical engineering, optical and automotive industries displayed in its halls. This explains the new name more clearly than a mere change of sign: the exhibits had indeed moved beyond agriculture.

The scale of the hall was put to full use. Among the exhibits Nefedov names a 2.6-metre-diameter telescope mirror, a 426-tonne turbine runner from the Kuibyshev Hydroelectric Power Station, and the rotor of a 150,000-kilowatt steam turbine. They represented different industries, but together demonstrated the range of technical capabilities in a single space. The telescope is particularly telling: an astronomical instrument featured in the industrial exhibition, but its presence does not justify giving the building a space-themed name.

Everyday consumer goods soon appeared on the upper floor as well. The study lists portable radios and tape recorders, cameras, cine cameras, and televisions with screens measuring up to 53 centimetres diagonally. In 1959, the industrial exhibition was once again combined with the agricultural and construction exhibitions to create VDNKh of the USSR. Technical exhibitions followed one another here in the early 1960s; nothing yet made the later renaming inevitable.

In April 1960, an urban planning exhibition was installed beneath the pavilion’s vaults. The industrial hall hosted this temporary exhibition while retaining its former name; no separate Urban Planning building appeared here. The subject of an exhibition and the name of its building were different things — the archives describe a similar distinction between the Cosmos section and the Mechanical Engineering pavilion in 1965.

What was on display in Mechanical Engineering immediately before 1967?

From May 1965, Inforga-65 occupied four halls of the Mechanical Engineering pavilion and one of the former pavilions in the livestock exhibition area. VDNKh lists devices for punched cards and microfilm, photocopiers, and an experimental mobile communications system with a base station serving 15 numbers. In June, one of the Vostok mock-ups was first shown at Le Bourget; the Russian State Archive of Scientific and Technical Documentation reports, that by October, when Gagarin viewed it, the mock-up was already at the exhibition in the Cosmos section. These events took place in different months of 1965: the sources do not confirm that Inforga-65 and the space exhibition ran at the same time.

In May 1966, part of the international exhibition Modern Agricultural Machinery and Equipment was installed there. According to VDNKh, the exhibition as a whole featured 700 companies from 20 countries; large letters spelling USSR hung on the façade of the Soviet section. After the exhibition ended, the machinery did not return to the pavilion, and the building closed for refurbishment. This sequence helps explain the turning point in 1967: preparations were under way for a new permanent exhibition after the last major agricultural show.

The illustrations accompanying Nefedov’s article help verify the names of the halls. The caption beneath a 1964 photograph calls the space the Mechanical Engineering pavilion’s assembly hall; a 1965 caption places the Vostok display beneath the dome of the same pavilion. These materials are not an order renaming the pavilion, nor do they establish whether the spacecraft pictured was authentic. They do, however, record where and when it was displayed, without confusing it with the 1966 agricultural machinery exhibition.

Were there space exhibits before the pavilion was renamed?

In 1965, the pavilion now known as Cosmos at VDNKh was called Mechanical Engineering: a mock-up of the Vostok spacecraft was displayed beneath its dome that year. In an account published by VDNKh it is stated that Yuri Gagarin and his daughter Elena were present when it was installed. The presence of a space exhibit in the hall is a well-supported fact of this transitional period, but it does not, by itself, prove that the new name was already displayed above the entrance.

The Russian State Archive of Scientific and Technical Documentation traces the history of one of the Vostok mock-ups more precisely. Built using the body of a Zenit-type spacecraft that had flown in space, it was first shown to the public at the Le Bourget Air Show in June 1965 and was subsequently displayed at VDNKh in the Cosmos section of the Mechanical Engineering pavilion. In October of the same year, Gagarin viewed this mock-up at the exhibition. The archive’s description clearly distinguishes the section’s name from the building’s; it does not establish when the section first appeared before 1965.

This mock-up should not be mistaken for the spacecraft Gagarin actually flew on 12 April 1961. According to the same archive, spacecraft 3KA No. 3 was first shown to the general public in 2016 at Moscow’s Multimedia Art Museum, and in the restored Pavilion No. 34 in 2018. A photograph or caption bearing only the word Vostok, without the spacecraft’s number, date and location, therefore cannot establish the history of a particular exhibit.

An early example of the space theme at a different location survives in VDNKh’s media archive. A photograph in VDNKh’s media archive is dated 1962 and shows a delegation in the Cosmos pavilion, described as ‘formerly North Caucasus’; the catalogue record places the photograph in a different building, the future Pavilion No. 2, Public Education. The photograph’s date should therefore be associated with Pavilion No. 2, identified in its caption, and not transferred to No. 34.

Where, then, was the pavilion called Cosmos?

It was Pavilion No. 2. Its current official VDNKh listing gives the sequence of names: North Caucasus until 1959, Science from 1959 to 1963, and Cosmos from 1964 to 1966. This sequence belongs to a separate building, constructed in 1954 to a design by Sergei Polupanov. The number two matters as much as the name Cosmos: without the number, an archival reference could easily be misattributed to Pavilion No. 34.

Pavilion No. 2’s heritage documentation clarifies that the space section initially occupied one hall and expanded into a second in 1962. The other exhibitions were removed from the building in May 1964; in 1967, it took on a different theme, Public Education. These changes trace the exhibition’s move between buildings: VDNKh had a space programme before the large pavilion became Cosmos, but its location and scale changed during the 1960s. The document does not say that Pavilion No. 34 was renamed in 1963.

In the VDNKh media library, the photograph is dated 1962, although the history of Pavilion No. 2 dates its use of the name ‘Cosmos’ to 1964–1966. The caption may have referred to the theme of the space exhibition or been added during later cataloguing; the catalogue entry alone cannot settle the question. The note ‘formerly North Caucasus’ identifies the location in the photograph: it shows what would become Pavilion No. 2, not Pavilion No. 34.

Even a poster for the 1958 All-Union Industrial Exhibition, published in the VDNKh magazine, paired an image of the first artificial satellite with the silhouette of the Mechanical Engineering pavilion. The poster shows that the organisers were already using orbital imagery as a symbol of technological progress. It does not show that the pavilion bore a ‘Cosmos’ sign: the caption still gives the building its earlier name. For the question explored in this article, it offers a rare glimpse of a new theme entering the exhibition’s visual language before the building was officially renamed.

What happened in Pavilion No. 34 in 1967?

In 1967, the large pavilion received a new sign and a new permanent exhibition, while its industrial section remained. A VDNKh article on the restoration states that ‘Cosmos’ and ‘Mechanical Engineering’ coexisted in the pavilion and on the surrounding grounds until 1991. The dual name in the records reflects the two exhibitions running in parallel.

The 1967 redesign extended beyond the display cases inside. VDNKh describes The facade gained a ‘Cosmos’ sign and a graphic panel depicting celestial bodies and a cosmonaut. A 25-tonne, full-size model of the Vostok launch vehicle was installed near Industry Square; architect L. I. Marinovsky designed its pedestal. According to the official page for the exhibit, the structure stands 38 metres high.

The spacecraft model beneath the dome of the Mechanical Engineering pavilion in 1965 and the launch vehicle outside its facade in 1967 were two different Vostok exhibits. They differed in location, purpose and scale. A photograph of the indoor exhibition cannot establish the date of the outdoor rocket, nor can the date of its installation establish when the domed hall was built. An accurate caption for each image needs the place and date of what it depicts.

The new exhibition featured displays on the development of rocket technology, models of satellites and lunar rovers, equipment for cosmonauts’ daily life and a Vostok descent module. It ran alongside the industrial section until 1991. The arrival of the name ‘Cosmos’ therefore did not mean that ‘Mechanical Engineering’ disappeared at once: the dual designation after 1967 has a factual basis, but does not establish that the two names were used together in 1963.

The distinction between Nos. 32 and 34 also applies to the architecture of the complex. The restorers described it as a single building, No. 32/34: the entrance section dating from 1954 is numbered 32, and the tall domed hall is numbered 34; between them stands the 1939 hall built to accommodate large exhibits. These numbers may identify parts of the complex rather than separate exhibition buildings. The distinction helps in reading archival plans, but cannot, on its own, establish the year of the renaming.

The space exhibition continued to evolve after it opened. According to VDNKh, visitors were shown docked replicas of the Soyuz and Apollo spacecraft in 1975. In 1983, a photographic portrait of Gagarin with a white dove was installed beneath the dome; the museum catalogue entry names Pavel Barashev as the photographer and dates the photograph itself to 1961. The dates refer to different events: the photograph was taken in 1961, but became a feature of the domed hall’s exhibition in 1983. Dating the image without giving its installation date would again create a false account of the interior’s history.

Why do sources give 1963 and 1967?

The 1963 date appears in at least two publications about the pavilion. Irina Rudneva and Andrey Rykshin, writing about its restoration for the 2017 issue of Moscow Heritage state that, after the name ‘Mechanical Engineering’ was adopted in 1956, the names ‘Space’ and ‘Mechanical Engineering’ appeared from 1963. A later report a historical and cultural heritage assessment report gives the same date. The year 1963 therefore cannot be dismissed as an isolated typographical error in one report.

Both texts were written long after the events. The authors of the 2017 publication list on-site and historical research conducted in 2015, but cite neither a renaming order nor a signed exhibition plan from the period alongside the 1963 date. The later report likewise presents no such document in the relevant paragraph. The repeated date may reflect research shared by the two publications; it would be unjustified to treat them as two independent eyewitness sources for the event itself.

The distinction between the exhibition’s theme and the building’s name is supported by an RGANTD archival description: by 1965, a ‘Space’ section was operating inside ‘Mechanical Engineering’. The 1963 date could therefore have referred to an early display of space technology, an interim period when both names were used, or another record concerning the building; each interpretation remains a hypothesis. The history of a separate Pavilion No. 2, which bore the name ‘Space’ in 1964–1966, offers another possible source of confusion, but does not prove that the authors of the documents confused the two.

What evidence could help verify the 1963 date?

Official publications date the renaming of the large building and the opening of its extensive space exhibition to 1967. More specific evidence survives from the interval between that date and the restorers’ accounts of 1963: a 1964 photograph of the hall for large exhibits captioned ‘Mechanical Engineering’, a VDNKh report that a model was installed in ‘Mechanical Engineering’ in 1965, and an archival description of a ‘Space’ section inside that pavilion. These sources are no substitute for a register of names, but they show that the two names may have referred to different levels of the same exhibition.

The phrase ‘Space and Mechanical Engineering’ does not, by itself, establish when it first came into use. In VDNKh article on the restoration that source, it describes the two exhibitions operating side by side from 1967 to 1991; the authors of the 2017 article date the combined name to 1963. The fact that the industrial section continued to operate after 1967 neither confirms nor disproves earlier use of both names. Establishing that would require a dated document from the exhibition management itself.

The question to investigate is clear. A management order changing the name, an exhibition plan showing the pavilion number, an exhibition catalogue, or a photograph from 1963–1966 with a legible sign on the façade could establish when the name appeared on Building No. 34 itself. A source referring to the ‘former North Caucasus’ concerns Pavilion No. 2 and does not settle the question. A document describing only a display inside ‘Mechanical Engineering’ confirms the presence of space exhibits, but not a change to the name displayed on the whole building.

Until such evidence is found among the sources examined, the precise account is this: the restorers’ publication and a 2025 historical and cultural assessment report give 1963 as the date of the combined name, while VDNKh’s own materials associate the adoption of ‘Space’ as the large pavilion’s name and the creation of its permanent exhibition with 1967. The description of a section in 1965 explains how the theme could have preceded that point, but does not establish when it began. The repetition of 1963 in two later works cannot take the place of a document issued by the exhibition management at the time.

What traces of earlier eras can be seen after the restoration?

The 2017–2018 restoration returned the pavilion to the architectural appearance it had acquired by 1954 and adapted it for the Cosmonautics and Aviation Centre, which opened on 12 April 2018. Specialists cleaned the façade and restored the stucco work, the sculptures’ smalt finish and details of the domed hall. According to a VDNKh report, the large photographic portrait of Yuri Gagarin with a dove was also returned beneath the dome in 2021 — a reminder of the building’s later space era.

The façade sculptures and reliefs point to agricultural machinery; the arched structure recalls the passage through the hall built for large exhibits; the star evokes the 1954 reconstruction; and the restored photograph and the rocket outside the entrance recall the exhibition programme of later decades. No single feature tells the whole story. That story emerges from the sequence of alterations and from establishing when each detail was added.

VDNKh has announced World Space Week for 3–9 October 2026, with lectures and tours at several venues across the exhibition grounds. The programme focuses on space, but its events listing offers no evidence that Pavilion No. 34 was renamed in the 1960s. The history of its name must be checked against documents from the period.

What happened to the building after the Soviet exhibition closed?

The space exhibition was dismantled in 1991. In the following years, the pavilion was used for retail and other events; VDNKh’s official history mentions the sale of cars and saplings. In 2014–2015, it hosted an exhibition marking 90 years of the Russian automotive industry, with 90 vehicles from museum and private collections. It then displayed objects from the opening ceremony of the 2014 Olympic Games in an exhibition called ‘The Mechanics of a Miracle’. This was no continuation of the 1967 exhibition: the space retained its familiar name, while its contents changed once again.

Restoration began on 19 January 2017. When specialists removed later layers of plaster and paint, they uncovered terrazite finishes containing marble chips and mica. VDNKh reports of the six types discovered: four date from 1939 and two from 1954. This physical evidence establishes the building’s chronology more reliably than the present colour of its walls. It makes it possible to distinguish parts of the original structure from the post-war reconstruction without assuming that the entire surface dates from a single year.

Behind false panels at the base of the dome, restorers discovered 26 images: the coat of arms of the USSR, the coats of arms of its fifteen union republics and ten emblems representing different industries. They also restored a smalt mosaic depicting factories, power stations and roads. Together, these elements reflect mid-20th-century ideas of industry and the state; they remained in the space pavilion even as new exhibitions presented visitors with different subjects. The surviving decoration is a historical source in its own right, rather than simply an attractive backdrop for the museum’s spacecraft.

A recreated ruby-red star chandelier was returned beneath the dome in November 2017. It reproduces the 1954 design, but the original light fitting had been lost. Gagarin’s photographic portrait has a different history: the 1961 photograph was installed in the hall in 1983, removed in the 2010s and returned beneath the dome in 2021. Visitors now see a modern reconstruction of the star alongside a restored feature from a later exhibition. Both need their own labels to avoid becoming misleading ‘witnesses’ to 1939 or 1967.

The Cosmonautics and Aviation Centre, which opened on 12 April 2018, carried the space theme into a new museum format. On 21 February 2022, VDNKh announced the permanent exhibition ‘Cosmos: The History of the Pavilion’, scheduled to open the following day. The published programme listed an architectural model of the 1939 structure, photographs, drawings and archival documents. The model shows the open hangar before the dome was added: the two construction phases belong to the same historic building. The exhibition announcement contains no renaming order that would settle the discrepancy between 1963 and 1967.

Which dates should be used when telling the pavilion’s story?

The construction of the open Mechanisation pavilion should be dated to 1939, its monumental reconstruction to 1954, and the name Mechanical Engineering to 1956. By 1965, the building already housed a Cosmos section with a model of Vostok; VDNKh materials date the adoption of a space-themed name for the large pavilion and the establishment of a permanent exhibition to 1967. The 1963 date given in a publication by the restorers and a 2025 historical and cultural assessment must be retained as a discrepancy between sources. Without a dated document from the exhibition management, it is impossible to say with confidence whether it refers to an early dual name for the building, the launch of the section or another stage in the building’s history.

If, after reading this account, you would like a tour exploring the history of VDNKh, the bureau’s ‘VDNKh and Cosmos’ route passes through Industry Square, where you can see Pavilion No. 34 from the outside and relate its façade to the history of its exhibitions. The route description does not promise a visit inside the building.

Sources

1. The New ‘Cosmos’: How the Pavilion Was Transformed During Its Restoration
2. Agricultural Machinery, a Hydroturbine and a Mural Featuring Gagarin’s Portrait
3. Historical and Cultural Assessment of the ‘Cosmos’ Pavilion
4. Report on the Adaptation of the ‘Cosmos’ Pavilion
5. Mysteries of the Universe and the History of Rocketry
6. 55 Years Ago, Pavilion No. 34 at VDNKh Was Named ‘Cosmos’
7. The ‘Cosmos’ Pavilion and the ‘Vostok’ Launch Vehicle
8. Polish delegation in the Cosmos Pavilion — a postcard from the VDNKh Museum
9. Opening of the exhibition ‘Cosmos: The History of the Pavilion’
10. World Space Week at VDNKh — 2026
11. VDNKh: Materials Discovered During the Restoration of the Cosmos Pavilion
12. Pavel Nefedov. From ‘Mechanisation’ to ‘Cosmos’: an excerpt from a study in VDNKh magazine
13. VDNKh: the ‘Inforga-65’ exhibition and other technology showcases
14. VDNKh: The History of Pavilion No. 2
15. Heritage protection document for Pavilion No. 2, ‘Public Education’
16. VDNKh Museum: a portrait of Yuri Gagarin in the Cosmos Pavilion
17. Irina Rudneva, Andrey Rykshin. The Cosmos Pavilion. Its Current Condition // Moscow Heritage, 2017, No. 4
18. RGANTD: The History of the Vostok Spacecraft Descent Modules
19. VDNKh Museum: the star-shaped chandelier beneath the dome of the Cosmos Pavilion