List of tallest buildings and structures
The world's tallest artificial structure is the Burj Khalifa in Dubai (of the United Arab Emirates). The building gained the official title of "Tallest Building in the World" and the tallest self-supported structure at its opening on January 9, 2010. The second-tallest self-supporting structure and the tallest tower is the Tokyo Skytree. The tallest guyed structure is the KVLY-TV mast.
History of the world's tallest buildings
The spire of Mole Antonelliana in Turin, completed in 1889, is claimed to have been tall; however, the upper part of the structure was destroyed by a 1953 tornado and rebuilt. If the original spire was as tall as is claimed, then the Mole Antonelliana was the world's tallest building from 1889 to 1908, surpassing Philadelphia City Hall by .