Bella Sky Hotel is a Twin tower Skyscraper in Copenhagen ,Denmark. The towers of the hotel are inclined and in opposite directions. This hotel is one of the rarest leaning structures in the world. The towers has 23 floors and about 800 rooms. 

Night View of the hotel

Bella Sky Hotel Under Construction

Bella Sky Hotel, Copenhagen

Peurta De Europa is also called "Gate of Europe" situated in Madrid. This towers are 115m tall with 26 floors tall each. This towers are inclined at an angle of 15 degrees making it first inclined skyscraper. This building serves as office for many companies in Spain.