The Bridge Over the River Kwai was built next to the town of Kanchanaburi, crossing the Mae Klong River. The Death Railway ran all the way from the Kwae River valley up to Three Pagodas Pass. Today, only the lowest part of the railway to Nam Tok is still in use. Kanchanaburi city has a war museum and a large POW cemetery.
Nine Army War History National Park (Uttayan Haeng Chart Songkram Kao Tab) at Ladya field, Tambon Chongsadao, is around 40 kilometers from Kanchanaburi city. This place has provided historical evidence of the nine army war between King Rama I of Thailand and King Padung[disambiguation needed] of Burma, from which Thailand emerged victorious.
In the Sai Yok district, there is a Buddhist tiger temple where tame tigers roam freely once a day. Also in Sai Yok is the Mueang Sing Historical Park, ruins of a Khmer town and temple, as well as the Sai Yok National Park with the two Sai Yok waterfalls.