Petronas Twin Towers, another landmark of Kuala Lumpur are located in center of the city nearby Kuala Lumpur Telecom Tower. Petronas Twin Towers were the tallest buildings in the world from 1998 to 2004, until Taipei 101 was completed in 2004. The height of Petronas Twin Towers is 378.6 m with top floor at 378 m level. The height of the towers is measured to the top of their structural components such as spires, but does not include antennas. The tower 1 was built by Japanese and Tower 2 by South Korean consortium. The Petronas Twin Towers were completed in 1998 after seven years of construction; built on horse racing track.