Chinese artist and activist Ai Weiwei has an exhibition running through the end of this month at the Taipei Fine Art Museum—his first large-scale solo show, apparently, in the Chinese world. The show features a wide range of works in the border zone between sculpture and found object assembly. The knockout piece is undoubtedly this one, a layered vertical labyrinth of 1200 bicycles (sans seats and handlebars). The exhibition, incidentally, is titled Absent because Ai remains under a travel ban in China and won't be able to attend.