A staff member sets up the installation "Stools" by Chinese artist Ai Weiwei of 6,000 stools in the atrium of the Martin-Gropius-Bau exhibition hall in Berlin, on Friday. Despite the incredible hostility he has faced in his own country, Ai Weiwei put together his largest one-man exhibition yet, entitled "Evidence," for Berlin’s Martin-Gropius-Bau. Spanning 9,800 feet and 18 rooms, he will display works and installations specially designed for the exhibition hall, as well as those not yet shown in Germany. The show runs from April 3 to July 7.
