List of tallest buildings and structures
The tallest artificial structure is Burj Khalifa, a skyscraper in Dubai that reached in height on January 17, 2009. By April 7, 2008 it had been built higher than the KVLY-TV mast in North Dakota, USA. That September it officially surpassed Poland's Warsaw radio mast, which stood from 1974 to 1991, to become the tallest structure ever built. Guyed lattice towers such as these masts had held the world height record since 1954.
Woolworth Building
The Woolworth Building is an early American skyscraper located at 233 Broadway in Manhattan, New York City. Designed by architect Cass Gilbert, it was the tallest building in the world from 1913 to 1930, with a height of . More than a century after its construction, it remains one of the 100 tallest buildings in the United States as well as one of the 30 tallest buildings in New York City.