At 610m high the Guangzhou Sightseeing and TV Tower is the tallest television tower on earth and among the world's top ten tallest buildings. Tough enough to withstand typhoon, earthquake and other assaults from Mother Nature, this elegant building forced a rewrite of the rule books. A deceptively simple twist in the middle of the main 450m tower sets this super tall building in a mega class of its own and, proves a test of massive proportions for the team responsible for breathing life into the vision of Dutch architects Mark Hemel and Barbara Kuit. (thetvdb.com)