高松宮殿下記念世界文化賞
His work has been exhibited worldwide in many of the most important galleries and museums. He represented Germany in the 1982 Venice Biennale and was included with his works in the Documenta 7 in 1982 and then in the Documenta 8 in 1987. In 2015 he received the Praemium Imperiale for sculpture in Tokyo, Japan.