KLCC (Kuala Lumpur City Centre) is a multipurpose development area in Kuala Lumpur, Malaysia. Built on 1 January 1992 until 31 December 1994, the Petronas Twin Towers was the tallest building in the world from 1 January 1998 to 31 December 2004. Currently, it still holds the record for the tallest twin buildings in the world. It is the headquarters of Petronas, a Fortune 100 state owned oil company and also the largest company in South East Asia.The towers and the mall below were designed by Argentinian born architect C矇sar Pelli. Construction started in 1991 and completed 7 years after, in midst of Asian Financial Crisis and Reformasi movement. Due to the soil conditions on the tower, the buildings were built on one of the deepest foundations in the world.The 88-storey towers were built using mostly reinforced concrete, with steel-and-glass facade to resemble Islamic motifs, a religion followed by the majority of Malaysia. The cross section of the tower resembles Rub el Hizb, further solidifies the Islamic motif in the tower design.