Within a three-week period, Adrian Smith sketched out the original designs that would eventually become the tallest building in the world ... Mast), the tallest freestanding structure (surpassing ...

Two men parachuted more than 2,200 feet from high on the building to set a new world record. Burj Khalifa in Dubai, United Arab Emirates, is now the world's tallest free-standing structure. But now ...

Whenever people talk about Dubai, the first thing that comes to mind is Burj Khalifa—the tallest building in the world ... North Dakota and the tallest free-standing structure, replacing ...

It held its distinction as the tallest building in the world for nearly 40 years ... Its facades transformed as they rose from masonry on the lower floors to glass and steel above.