Doha Tower, also known as Burj Doha and previously named as Burj Qatar and Doha High Rise Office Building, is an iconic high rise tower located in West Bay, Doha, Qatar. Doha Tower comprises 46 floors above ground, 3 floors below ground and a total gross floor area of approximately 110,000 m², It has no central core, leaving more internal space available to its occupants. The design is unique, the first skyscraper with internal reinforced concrete dia-grid columns, which form a cross (X) shape that connects with the eye-catching cylindrical facade.