This is the most modern building to emerge amid a neighborhood of traditional architecture. The museum is the valedictory work for 90-year-old modernist master I.M. Pei. A controversy erupted over whether to allow Pei to construct the glass-and-steel structure in historical Suzhou. Like his crystal pyramid in the courtyard of the Louvre, this building thrives on juxtapositions of old and new. The museum houses historical objects from Suzhou's ancient past and an impressive collection of Ming and Qing Dynasty paintings and calligraphy. English-language docent tours cost Y100.