The artist, Horst G. Loewel, created many art installations worldwide. The first Art Installation was in 1971 "An Environmental Action" - art from the garbage place - during the exhibition in the gallery of the Ministry for Urban Development in Bonn, Germany.
Further art installations:

The Art Forest
The Three Graces
Salmon Installation
Garden of Beachies
Mercedes Benz Installation
Prestige Memorial
Mc Laughlin
Mephistopheles