The Tetrahedron in Bottrop (German: Bottrop Tetraeder or officially Haldenereignis Emscherblick) is a walkable steel structure in the form of a tetrahedron with a side length of 60 m, resting on four 9 m high concrete pillars. It is located in Bottrop, Germany, on top of the Halde Beckstraße mine dump and serves as the landmark of the town. It was opened on the 3rd October 1995 German Unity Day. The design is reminiscent of the Sierpinski tetrix: placing four half-size tetraedra corner to corner and adding an octaedron in the middle, a full-size tetraedron is formed; this process can be repeated recursively to form larger and larger tetraedra. Wikimedia Commons has Tetraeder Bottrop-related media.
Maximum Temprature: 12.22 C
Clouds: light intensity drizzle
sunrise: 2019-05-22 03:31:21
sunset: 2019-05-22 19:26:37