REMOVE

1. earthworks (sculpture)
2. earthworks (sculpture)
3. performance art

WHAT

1. architecture (discipline) (1)
2. installations (visual wor … (1)
3. sculptures (visual works) (1)

WHERE

1. American (1)
2. Germany (nation) (1)
3. Hannoversch Münden, Germa … (1)
4. North American (1)

WHO

1. Cai Guo-Qiang (1)
2. Haeg, Fritz (1)

WHEN

1. 2012 (1)
2. 20th century (1)
3. Contemporary (1)