The city's canals reveal a different side to Bangkok, which can be explored on board a long tail - a kind of traditional long barge. The city was once riddled with khlong (canals), which were filled in during the 1950s when the city of Bangkok began to expand. These canals have survived in the Thonburi district, where they are used mainly to transport goods around the floating markets. Admire the houses on stilts and stop off at the Royal Barge Museum, on the right bank of the Bangkok Noi khlong, or at the Wat Suwanaram on the left bank.