Over the flat plain of central Sri Lanka rises a small hill of rock. Since the 1st century BC it has been used as a Buddhist cave temple, with more than 80 smaller and bigger caves. There are five main caves, all dimly lit with ancient Buddha statues and precious wall paintings, along with the usual religious mismatch of statues of Hindu gods and old kings. The Buddhist monastery, which is believed to be from the 2nd or 3rd century BC, is still functioning to this day and local visitors still use the caves to pray. By being such an impressive historical place, Dambulla Cave Temple was of course declared an UNESCO site. As a bonus, you have a magnificent view from the top and Sigiriya Rock can even been spotted in the distance, 19 km away.