together at the beginning of the 20th century by the London General Omnibus Company (LGOC) when it began to preserve buses being retired from service. After the LGOC was taken over by the London Electric Railway (LER), the collection was expanded to include rail vehicles. It continued to expand after the LER became part of the London Passenger Transport Board in the 1930s and as the organisation passed through various successor bodies up to TfL, London's current transport authority. The collection has had a number of homes. It was housed as part of the Museum of British Transport at a disused tram depot in Clapham High Street (now a supermarket) from 1963 to 1972, and then at Syon Park in Brentford from 1973 to 1977, before being moved to Covent Garden in 1980. Most of the other exhibits moved to York on formation of the National Railway Museum in 1975. The Covent Garden building has on display many examples of buses, trams, trolleybuses and rail vehicles from 19th and 20th centuries as well as artefacts and exhibits related to the operation and marketing of passenger services and the impact that the developing transport network has had on the city and its population. The first underground electric train, from 1890, can be seen here. Larger exhibits held at Acton depot include a complete 1938 stock tube train as well as early locomotives from the first sub-surface and first deep-level lines. Other Attractions As of 2022, the museum offers three simulator experiences: One Elizabeth Line simulator featuring a cab, a stand-up smaller version of the later, and a 1938 stock simulator complete with deadman's handle. In addition there is the Hidden London exhibition which has been extended until July 2023, featuring a sized-down, walkthrough replica of the Aldwych Ticket Hall and Down Street Blitz Shelter which Winston Churchill used during World War II. The exhibition tells the story of some of London's abandoned stations and hidden transport infrastructure of which the museum offers some tours of. There is the Children's interactive area complete with Optare bus and the All Aboard play-zone for 0-7 year olds. Museum Shop The museum shop sells a wide range of books, reproduction posters, models, gifts and souvenirs, both at Covent Garden and online. Profits from sales support the museum's activities. Museum Depot (Acton) The Museum Depot is located in Acton, west London, and was opened in October