Old City (Rattanakosin) is where King Rama I built his new capital in 1782. The seat of power to this day, this is where most of Bangkok's "must see" sights can be found. The district borders the Chao Phraya River on the west, but land reclamation has long since joined the eastern bank to the mainland. The focal point of the area is the wide open field of the Royal Ground (Sanam Luang), the site of many ceremonies and festivals associated with the royalty.

China Town district is one of the oldest areas of Bangkok as Chinese merchants were originally moved to this area in the early 1780's when Bangkok was founded. One of the main streets of this area, Charoen Krung. China Town remains a pretty interesting area to visit.

Khao San Road, a small street about three blocks long located about a block from the Chao Phraya River in the Banglamphu district northwest of downtown Bangkok.