Tiger & Turtle, Magic Mountain (Duisburg, Germany)
What may appear from afar as the most thrilling roller coaster of your life is actually an intricate walkable staircase. German designers Heike Mutter and Ulrich Genth unveiled their 249-step masterpiece late last year in Duisburg, Germany, and it’s been a local hit ever since. While the upside down loops are blocked off, the curvy staircase offers visitors captivating views of the Rhine, with the highest stair rising to 49 yards above sea level. The sculpture is also open at night and illuminated by led-lights strategically built into the handrails for better visibility. Photo credit: Eichental via Flickr.
https://www.huffpost.com/entry/amazing-staircases-photos_n_2325734
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