The Geological Museum – now the Red Zone – started life in 1841 as part of the Geological Survey.
After three homes in 100 years it moved to South Kensington, into a building designed by Science Museum architect Sir Richard Allinson and JH Markham .
You can see the words ‘Geological Survey Museum’ carved over the Museum entrance in Exhibition Road.
The building, which shares similarities in appearance with the Science Museum, was built between 1929 and 1933 at a cost of £220,000, and opened its doors in July 1935.
In 1985 it merged with the Natural History Museum, adding a collection of more than 30,000 minerals. In 1988 the Lasting Impressions gallery was opened to connect the two.
The redevelopment of 1996 to 1998 created the Atrium and six new exhibitions.