If you don't have the nerves for a roller coaster, try this 'stroller coaster' instead. ‘SpaceWalk’ is a traversable sculpture located in the hills of Hwanho Park in the city of Pohang, South Korea, that is 80ft from the ground at the top of its loop, the highest point. Incredible photographs reveal the roller-coaster-shaped ‘SpaceWalk’ staircase in South Korea The …
