the Swiss Re Building (colloquially referred to as the Gherkin), is a skyscraper in London's main financial district, the City of London, completed in December 2003 and opened at the end of May 2004. With 40 floors, the tower is 180 metres (591 ft) tall, and stands on the former site of the Baltic Exchange building, which was severely damaged on 10 April 1992 by the explosion of a bomb placed by the Provisional IRA.
is a 5-star luxury hotel located in Dubai, United Arab Emirates. At 321 m (1,053 ft), it is the fourth tallest hotel in the world. Burj Al Arab stands on an artificial island 280 m (920 ft) out from Jumeirah beach, and is connected to the mainland by a private curving bridge. It is an iconic structure whose shape mimics the sail of a ship.
(formerly named, and still commonly referred to as, the Sears Tower) is a 108-story, 1,451-foot (442 m) skyscraper in Chicago, Illinois. At the time of its completion in 1973, it was the tallest building in the world, surpassing the World Trade Center towers in New York, and it held this rank for nearly 25 years. The Willis Tower is the tallest building in the United States and the fifth-tallest freestanding structure in the world, as well as the fifth-tallest building in the world to the roof.