Kingdom Centre vs U.S. Bank Tower

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Kingdom Centre (Arabic: ???? ????????) is a 99-story, 302.3 m (992 ft) skyscraper in Riyadh, Saudi Arabia. When completed in 2002, it overtook the 267-meter Faisaliyah Tower as the tallest tower in Saudi Arabia. It has since been surpassed and has become the fifth-tallest skyscraper in the nation, whose tallest two buildings are the Abraj Al Bait Towers and the Capital Market Authority Tower. It is the world's third-tallest building with a hole following the Shanghai World Financial Center and the 85 Sky Tower in Taiwan. The mixed-use tower was created by Prince Al-Waleed bin Talal and designed by the group of Ellerbe Becket and Omrania, who were selected through an international design competition.

It is situated on a 100,000--square-metre website and houses the 57,000-square-meter Al-Mamlaka shopping mall, offices, the Four Seasons Hotel Riyadh, and luxury apartments. There is a 65m skybridge atop the skyscraper.The upper third of the tower features an inverted parabolic arch topped by a public sky bridge. The sky bridge is a 300-ton steel construction, taking the kind of an enclosed corridor with windows on either side. After paying the entrance fees, visitors take two elevators to reach that level.

Source: Wikipedia

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U.S. Bank Tower, formerly Library Tower and First Interstate Bank World Center, is a 1,018-foot (310.3 m) skyscraper at 633 West Fifth Street in downtown Los Angeles, California, United States.

It is, by structural height, the third-tallest building in California, the second-tallest building in Los Angeles, the Eighteenth-tallest in the USA, the third-tallest west of the Mississippi River after the Salesforce Tower and the Wilshire Grand Center, and the 129th-tallest building in the world, after being surpassed by the Wilshire Grand Center. It is the only building in California whose roof height exceeds 1,000 feet. Since local building codes required all high tech buildings to have a helipad, it was known as the tallest building in the world with a roof-top heliport from its completion in 1989 to 2010 when the China World Trade Center Tower III opened. It is also the third-tallest building in a significant active seismic region; its structure was designed to withstand an earthquake of 8.3 on the Richter scale. It consists of 73 stories above ground and two parking levels below ground. Construction began in 1987 with completion in 1989. The building was designed by Henry N. Cobb of the architectural firm Pei Cobb Freed & Partners and cost $350 million to construct. It is among the most recognizable buildings in Los Angeles, and often appears in establishing shots for the city in films and television programs.

Source: Wikipedia