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.
List of tallest buildings and structures
The tallest "secular" building between the collapse of the Pharos and the erection of the Washington Monument may have been the Torre del Mangia in Siena, which is tall, and was constructed in the first half of the fourteenth century, and the Torre degli Asinelli in Bologna, also Italy, built between 1109 and 1119.