State Tower is a skyscraper located on Silom Road, Bang Rak business district, Bangkok, Thailand, adjacent to Charoen Krung Road. Built in 2001, it is the largest building in Southeast Asia, with 300,000 m² (3,200,000 sq ft) floor area. State Tower has 68 floors and is 247 m (810 ft) tall, making it the third tallest building in Thailand as in 2011 and 139th in the world.