10 MARCH 2016 - BANGKOK, THAILAND: Passengers on C Concourse at Suvarnabhumi Airport in Bangkok. Suvarnabhumi was officially opened for limited domestic flight service on 15 September 2006, and opened for most domestic and all international commercial flights on 28 September 2006. The airport is currently the main hub for Thai Airways International, Bangkok Airways and Orient Thai Airlines. It also serves as regional gateway and connecting point for various foreign carriers. The airport is located on what had formerly been known as Nong Nguhao (Cobra Swamp) in Racha Thewa in Bang Phli, Samut Prakan, about 25 kilometres (16 mi) east of downtown Bangkok. The name Suvarnabhumi was chosen by King Bhumibol Adulyadej and refers to the golden kingdom, hypothesised to have been located somewhere in Southeast Asia. The building was designed by Helmut Jahn of Murphy / Jahn Architects. It was constructed primarily by ITO JV. The airport has the world's tallest free-standing control tower (132.2 metres or 434 feet), and the world's fourth largest single-building airport terminal (563,000 square metres or 6,060,000 square feet). Suvarnabhumi is the tenth busiest airport in the world, sixth busiest airport in Asia, and the busiest in the country, having handled 53 million passengers in 2012, and is also a major air cargo hub, with a total of 95 airlines. On social networks, Suvarnabhumi is the world's most popular place where Instagram photographs were taken in 2012. The airport inherited the airport code, BKK, from Don Mueang after the older airport ceased international commercial flights. PHOTO BY JACK KURTZ