You may want to visit the city of Kanchanaburi 125 km west of Bangkok.

The city is famous for mainly the historic places like the Bridge on the River Kwai and the war cemetary with 7000 headstones for allied prisoners of war who died in World War II during the building of the so-called "Death Railway". You may take a trip on the railway to experience the beauty of the landscape along the River Kwai. Have a meal at one of the restaurants by the riverside and watch the big party-rafts sailing on the river in the night time, and have a stroll at the local evening market by the railway station, look at the local city life and maybe make a bargain.

Go visit this minor provincial city not so far away from the hectic life in Bangkok. You can reach it by airconditioned bus from the Southern Bus Terminal, leaving every 15 min., price 100 Baht, takes two hours. There are plenty of nice accomodations like hotels (River Kwai Hotel) or guesthouses (Sugar Cane, Jolly Frog, Blue Star, etc.).