Yung Ho Chang, one of China’s most important architects, introduces one of his installations during his solo exhibition at Pingshan Art Museum in Pingshan District at the opening ceremony Saturday. Five installations in Chang’s “Looking For” series are on show to present a brief history of perspective (a way of representing shapes and volumes in architecture). Chang’s solo exhibition is open for free to the public from 9 a.m. to 5 p.m. every day, except Mondays.  Liu Xudong