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Petronas Twin Towers, pair of skyscraper office building in Kuala Lumpur, Malaysia, that are among the world's tallest buildings. The Twin Towers, built to house the headquarters of Petronas, the national petroleum company of Malaysia, were designed by the Argentine-born American architect Cesar Pelli, they were completed in 1998.

The plan of each tower is identical: an eight-lobed circular structure that contains 88 stories of occupied space and a pyramid-shaped pinnacle surmounted by a slender steel spire. Both rise to a hight of 1,483 feet (451.9 meters) which includes 242 feet (73.6 meters) for pinnacle and spire. Each building is supported by 16 large columns around its perimeter, which along with the rest of the frame, are made of high-strength, steel-reinforced concrete rather than of structural steel; the exterior sheathing consists of stainless steel and glass. A sky-bridge two stories tall links the two towers between the 41st and 42nd stories.

In 1996, after the spires had been attached to the buildings the Petronas Twin Towers were declared the world's tallest buildings, eclipsing the former record holder, the 110-story Sears (now Willis) Tower in Chicago. The Twin Towers lost their preeminent status in 2003 after a spire was put in place atop the Taipei 101 (Taipei Financial Center) building, in Taipei, Taiwan, and that structure reached a height of 1,667 feet (508 meters).

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Additional Photos by Zbigniew Kalinowski (fotka) Gold Star Critiquer/Gold Note Writer [C: 549 W: 9 N: 1433] (6525)
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