Perhaps the most iconic building of Malaysia and the tallest twin building in the world. Visitors first head up to the Skybridge at level 41-42, one of the highest suspended bridges in the world, before going up to level 86 to marvel at Kuala Lumpur from the observation deck. There are also displays and informational videos about the tower and its construction. Tickets can be purchased online or at the base of the tower. A ticket allows you access during a specific time block only and are limited, so either turn up early or purchase online in advance.

The Petronas Towers (Malay: Menara Berkembar Petronas), also known as the Petronas Twin Towers and colloquially the KLCC Twin Towers, are an interlinked pair of 88-storey supertall skyscrapers in Kuala Lumpur, Malaysia, standing at 451.9 m (1,483 ft). From 1998 to 2004, they were the tallest buildings in the world until they were surpassed by the Taipei 101 skyscraper in Taiwan. The Petronas Towers remain the world's tallest twin skyscrapers, surpassing the original World Trade Center towers in New York City, and were the tallest buildings in Malaysia until 2019, when they were surpassed by The Exchange 106. The Petronas Towers are a major landmark of Kuala Lumpur, along with the nearby Kuala Lumpur Tower and Merdeka 118, and are visible in many places across the city.