Foster + Partners shelters subterranean art gallery with pyramidal roofscape

Four peaks clad in weathering steel cover the underground galleries at the Datong Art Museum, which British architecture studio Foster + Partners has completed in northern China.
The 32,000-square-metre art museum, which is now open in Datong, is designed by Foster + Partners as an "urban living room" with facilities for both artists and the public.
Top image: Foster + Partners has completed the Datong Art Museum in China. Above: it is distinguished by a pyramidal roofscape
It forms part of