The European Gate is located on the Avenue Castillo in the north of Madrid, Spain. Two identical buildings stand on both sides of the road. The building is 115 meters high and tilts 15 degrees to each other. The roof is staggered from the bottom of the building to 30 meters, like an uncapped arch. Standing at the bottom of the building and looking up, the huge building is like Mount Tai, which is about to dump immediately, and is actually as stable as Mount Tai.