The Petronas Towers (also known as the Petronas Twin Towers), in Kuala Lumpur, Malaysia, were once the world's tallest buildings when measured from the level of the main entrance to the structural or architectural top.

It has since been unseated by the Taipei 101 on October 17, 2003. The Petronas Towers are currently the tallest twin towers in the world, and it lays claim to being the world's tallest high rise of the 20th century. Critics point out that this applies to only one of four height categories defined by the Council on Tall Buildings and Urban Habitat - although the three additional height categories were only introduced as the tower neared completion in 1996, as opposed to the original category which had been in use since 1969

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