Visitors stopped from walking on carpet of seeds . Of course , during the cultural revolution we all knew that the Sun symbolized the leader , and sunflowers represented the people . Interaction with porcelain seeds generating too much dust , says Tate Modern . Ai famous for co-designing Beijing 's `` Bird 's Nest '' stadium . Comment:
Visitors stopped from walking on carpet of seeds . Interaction with porcelain seeds generating too much dust , says Tate Modern . Ai famous for co-designing Beijing 's `` Bird 's Nest '' stadium . Comment: