The Chandigarh Architecture Museumwhich was set up in 1997 to document, preserve and showcase rare documents, drawings, sketches and archives etc. pertaining to the making of Chandigarh. The sculptural building designed by architect S.D. Sharma, was adapted from a structure designed by Le Corbusier as an Exhibition Pavilion at Zurich, in 1965- the CITY MUSEUM building has been built in concrete. The main cuboid block of the museum is a simple, yet elegant structure in concrete derived from two squares placed at an off set in plan. Thestriking double roof over the terrace of the main structure is in the form of two pyramids-one upright and the other inverted-over each square.