Nana

Sukhumvit Road is not only one of the longest roads in Thailand, but one of the longest roads in the world. Towards the west end it changes name to Phloen Chit Road and Rama I Road as it enters the Siam Square area, but to the east it runs most of the way to the Cambodian border. The sois are numbered from west to east, with odd numbers north and even numbers south of Sukhumvit Road. The sois on the north and south sides of Sukhumvit don't line up; for example, Soi 33 is opposite Soi 24. Confusing is that these sois also have names of their own (for example, Soi 55 is better known as Soi Thong Lo) and these sois can also have sois of their own (such as Thong Lo Soi 1). Looking at the high-rise apartment buildings, the Skytrain and the perennial traffic jam on Sukhumvit Road, it is hard to believe that this area used to consist of rice fields until World War II. After the war, this area became developed with large contemporary villas catering to the upper class.