While we've seen some pretty impressive staircases inside homes, a three-bedroom cottage just doesn't offer the opportunity to be so, shall we say ... adventurous with stairs. But go outside, where the space and the architectural opportunities have no bounds, and you can create some really cool — almost death-defying — stair designs. Take a look at some of the most impressive around the world:
Created out of zinc and steel by the German artists Heike Mutter and Ulrich Genth, this 69-foot tall staircase feels like a walkable roller coaster. Physics (and a no-entry sign) will stop you from making it over the the loop, but there are LED lights built into the handrails so visitors can appreciate this 249-step climb even at night.
In India, have been used for centuries as a way to collect water in dry climates. Chand Baori is one the biggest and most complex; over 3,000 steps make it a true architectural feat.
Originally constructed in the 12th century as a Hindu temple, Angkor Wat eventually became a Buddhist Temple and is one of the largest religious monuments in the world. Many tourists come to walk the ruins of the Khmer Empire, and scale (yes, scale) the steps leading up to the temple — it's a mere 70 degree incline.