Phanom Rung is a glorious set of intricate ruins located in the Northeast of Thailand near the town of Buriram. Built between the 10th and 13th centuries, it retains a remarkable amount of detail in its stone carvings. Angkor Wat, the capitol of Cambodia, is said to be modeled after Phanom Rung.
Though not one of the most visited historical parks or tourist destinations among foreigners, there is a lot of history here and is worth a visit if you’re traveling in the Northeast. The Rough Guides website has a lot of good additional information. When we visited the park, we hired a couple of motorbike taxis for the day. They drove us between Phanom Rung and nearby Muang Tam, dropped us off at the parks and came back to pick us up after a few hours. Then they took us to a bus stop at the end of our trip.