Is the KVLY TV mast still the tallest man-made structure in the world?
The tallest man-made structure is Burj Dubai, a skyscraper under construction in Dubai that reached 688 m (2,257 ft) in height on September 1, 2008. By 7 April 2008 it had been built higher than the KVLY-TV mast in North Dakota, USA, which is still the tallest completed structure at 628.8 m (2,063 ft) In September it officially surpassed Poland’s 646.38 m (2,121 ft) 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.
The tallest man-made structure is Burj Dubai, a skyscraper under construction in Dubai that reached 688 m (2,257 ft) in height on September 1, 2008. By 7 April 2008 it had been built higher than the KVLY-TV mast in North Dakota, USA, which is still the tallest completed structure at 628.8 m (2,063 ft) In September it officially surpassed Poland’s 646.38 m (2,121 ft) 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. Sources: http://en.wikipedia.