On April 3, Ai Weiwei will open his largest solo exhibition ever at Berlin's Martin-Gropius-Bau. Entitled "Evidence," the exhibition will span 18 rooms (approximately 3,000 square meters) and will include his Stools installation as well as other installations designed expressly for the space. Earlier this week, Weiwei recorded a video requesting that his passport be returned to him so that he can physically attend the exhibition.
As with most of his exhibitions, Weiwei currently has assistants setting up the various installations as per his instructions. The images above from Martin-Gropius-Bau's Facebook page show the progress, and there are a couple great shots over at NBC News as well. Evidence will run through July 7, and you can find more information here.