List of tallest buildings
The international non-profit organization Council on Tall Buildings and Urban Habitat (CTBUH) was formed in 1969 and announces the title of "The World's Tallest Building" and sets the standards by which buildings are measured. It maintains a list of the 100 tallest completed buildings in the world. The organization currently ranks Burj Khalifa in Dubai as the tallest at . The CTBUH only recognizes buildings that are complete however, and some buildings included within the lists in this article are not considered finished by the CTBUH.
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.