TERMINAL 21 is a mixed-use complex on Sukhumvit Road, near the Asoke intersection, in Bangkok, Thailand. It opened in October 2011.
Terminal 21 is a one floor one theme shopping mall. The concept is market streets of the world. It is decorated based on well-known streets in cities such as Rome, Paris, Tokyo, London, Istanbul. This mall has the longest escalators in Thailand, up to 36 metres.