In Duisburg, Germany, there is an unusual structure called Tiger & Turtle – Magic Mountain.  It looks for all the world like a roller coaster, but it’s actually stairs, and it’s considered a sculpture.    You can climb on all parts of it except the inverted portion of the loop, for obvious reasons.

We never did figure out why they named it Tiger & Turtle.

Have you ever been to Tiger & Turtle?  Why do you think it was given that name?