This installation in the Tate Modern by Do Ho Suh is made of polyester and stainless steel and is a replica of the artist's apartment in New York. It is suspended high in the ceiling of a large room in the Tate. It is amazingly detailed - even having a power socket on the wall of the stairway.
When I saw it there were several children dancing underneath and attempting to jump up onto the stairs. They were a long way off of course but I thought that was lovely.