World's top 5 tallest man-made structures

1.Burj Dubai

Burj Dubai (Arabic: ‎ "Dubai Tower") is a skyscraper currently under construction in Dubai, United Arab Emirates, and is currently the tallest man-made structure on Earth. Construction began on September 21, 2004, and it is expected to be completed and ready for occupation in September 2009.As of 7 April 2008, Burj Dubai has reached a height of 629 m (2,064 ft), with 162 completed floors

The building is part of a 2 km² (0.8 sq mi) development called 'Downtown Dubai' and is located at the "First Interchange" (aka "Defence Roundabout") along Sheikh Zayed Road at Doha Street. The tower's architect is Adrian Smith who worked with Skidmore, Owings and Merrill (SOM) until 2006. SOM is the architecture and engineering firm in charge of the project. The primary builder is Samsung Engineering & Construction, along with Besix and Arabtec. Turner Construction Company was chosen as the construction manager[more...]


2.KVLY-TV Mast

The KVLY-TV mast (formerly the KTHI-TV mast transmitting ) is a 628.8 metres (2,063.0 ft) televisionmast in Blanchard, Traill County, North Dakota, USA channel 11. Although the , used by Fargo station KVLYBurj Dubai tower construction has surpassed its height, the KVLY-TV mast is still the world's tallest completed man made structure.

The tower is located three miles west of Blanchard, North Dakota, which is roughly halfway between Fargo and Grand Forks. It became the tallest artificial structure upon the completion of its construction on August 13, 1963. The mast was surpassed in height by 18 m (57 ft) in 1974 by the Warszawa radio mast near Konstantynów, Poland, which later collapsed on August 8, 1991, making the KVLY-TV mast again the tallest structure on land.As of April 7, 2008, the official website for the Burj Dubai project reported that Burj Dubai has reached a height of 629 meters, which is 2064 feet, therefore surpassing the KVLY-TV mast by a foot.[more...]

3. CN TOWER

The CN Tower, located in downtown Toronto, Ontario, Canada, is a communications and tourist tower standing 553.33 metres (1,815.39 ft) tall. It surpassed the height of the Ostankino Tower while still under construction in 1975, becoming the tallest free-standing structure on land in the world. On September 12, 2007, after holding the record for 31 years, the CN tower was surpassed in height by the still-under-construction Burj Dubai. It remains the tallest free-standing structure in the Americas and the signature icon of Toronto's skyline, attracting more than two million international visitors annually.

In 1995, the CN Tower was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers, and also belongs to the World Federation of Great Towers.[more...]


4.Sears Tower

The Sears Tower is a skyscraper in Chicago, Illinois. It has been the tallest building in the United States since 1973, surpassing the World Trade Center, which itself had surpassed the Empire State Building only a year earlier. Commissioned by Sears, Roebuck and Company, it was designed by chief architect Bruce Graham and structural engineer Fazlur Khan of Skidmore, Owings and Merrill.

Construction commenced in August 1970 and the building reached its originally anticipated maximum height on May 3, 1973. When completed, the Sears Tower had overtaken the roof of the World Trade Center in New York City as the world's tallest building. The tower has 108 stories as counted by standard methods, though the building owners count the main roof as 109 and the mechanical penthouse roof as 110. The distance to the roof is 1,451 feet (442 m), measured from the east entrance.

In February 1982, two television antennas were added to the structure, increasing its total height to 1,705 feet (520 m). The western antenna was later extended to 1,730 feet (527 m) on June 5, 2000 to improve reception of local NBC station WMAQ-TV.[more...]

5.Taipei 101

Taipei 101 is a 101-floor landmark skyscraper located in Taipei, Taiwan. The building, designed by C.Y. Lee & Partners and constructed from May 1995 to March 2005 primarily by the South Korean multinational Samsung Engineering & Construction and supported by the KTRT Joint Venture, is one of the world's tallest completed skyscrapers. Taipei 101 received the Emporis Skyscraper Award in 2004. It has been hailed as one of the Seven New Wonders of the World (Newsweek magazine, 2006) and Seven Wonders of Engineering (Discovery Channel, 2005).It stands at 509.2 mts or 1671 ft.[more...]