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.
432 Park Avenue
432 Park Avenue officially topped out on October 10, 2014, at making it the second-tallest building in New York City after One World Trade Center and the fifteenth-tallest building in the world. Because much of One World Trade Center's height is in its spire and its base is nearly lower, the rooftop of 432 Park Ave is, , the highest in the city. It surpassed 311 South Wacker as the tallest building in the world known only by its street address.