Introduced to the public on 13 november 2011, 'tiger & turle - magic mountain' by hamburg-based duo heike mutter / ulrich genth is a large walkable outdoor sculpture on the heinrich hildebrand höhn in duisburg, germany. resting on the highest point of the undulating park, the rollercoaster-like structure allows visitors to walk along its elevated lanes with views of the western ruhr. Pulling from the rolling nature of the landscape, the three dimensional sculpture features a one meter-wide flight of stairs that curves and rises in expressive gestures. 
