6. CCTV Headquarters, Beijing, China
The CCTC headquarters is a 44-storey 34 m high skyscraper located in the Beijing City of China. The building is known for its unusual shape and undoubtedly one of great architectural marvels. This iconic building was formed by two leaning towers that merge in perpendicular top and bottom to form a closed loop. The engineers described this structure as ‘three dimensional cranked loop’.
The CCTV headquarters was built by renowned architects Rem Koolhaas and Ole Scheeren. It was built between 2004 and 2012. In 2013 the council on tall buildings and urban habitat named CCTC headquarters as ‘The best tall building worldwide’.
The leaning towers of CCTC headquarters are at 234 m and 194 m high respectively. At the merging point these two leaning towers form a 15-storey cantilever. The highly unusual structure of CCTV headquarters also has capacity to withstand in seismic activities.