Bangkok is the capital and largest city in the country, as well as Thai Government Center. Education Transportation, finance, commercial banking The communication and progress of the country. It is also the city with the longest name in the world as well. The river is a major river flowing through the city is divided to 2 sides of Phra Nakhon and Thonburi side is. All areas are metropolitan doikrungthep 1, 568.737 sq. km.