Wikipedia:Picture of the day/October 16, 2005
For five years after their completion in 1998, the Petronas Towers in Kuala Lumpur, Malaysia, were the world's tallest buildings. The architectural design by César Pelli includes motifs found in Islamic art — a reflection of Malaysia's Muslim heritage.
In an unusual move, a different construction company was contracted to build each tower and set to compete against each other. The builders of Tower 2 won the race, despite starting a month behind Tower 1.