A wonderful metallic structure bathed in the evening light. Until 2004 this was the tallest building in the world but was later eclipsed by Taipei101 in Taiwan. It remains however the tallest twin tower building.
It is built on what was the site of the Kuala Lumpur race track; an interesting case of getting rid of gambling for the sake of mammon.
Despite the exterior metallic glint the towers actually use very steel in their reinforcement. This was a cost saving measure due to the price and availability of steel at the time. The towers were constructed on a cheaper radical design of super high-strength reinforced concrete according to the entry in Wikipedia.