Some people say that Barcelona is "Gaudi's City", and some people say that Gaudi is "the son of Barcelona." Either way, Gaudi and the city are closely linked. Gaudi left more than 20 works in Barcelona, 7 of which were listed as World Heritage sites. The roof terrace of the Mira House has 30 peculiar chimneys, 2 vents, and 6 stairways. The tower-shaped stairway has the largest shape and the water tower is hidden inside the spiral ladder. The heights are staggered, and the whole building is like a rough sea. It is very dynamic. The roof is a chimney and ventilation duct made of grotesque abrupt objects. On the roof, a dozen of novel and avant-garde "extraordinary hackers" stand on top of it, coupled with the changing clouds, such as through time and space, presenting a fantastic future world. These strange shapes are actually exhaust pipes or water towers. Gaud will beautify them into a beautiful and can swim place. These strange shaped chimneys and air ducts