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'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany
 
 
 
'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany 'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany 'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany 'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany 'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany 'Tiger and Turtle' Rollercoaster Walkway by Heike Mutter and Ulrich Genth in Duisberg, Germany