I visited this Wat two years ago and recommend going there. Although it's a highly contested site and a bit difficult to travel to, it's beautiful to see and experience. It is placed on the Thailand Cambodian border near Kantharalak, Thailand, and Choam Khan, Cambodia. When I visited I was the only foreign tourist there and I enjoyed the so called solitude immensely, I have to admit there were quite a few Cambodian soldiers around me watching where I went and what I photographed, all in all it was truly worth going there.
View from below looking up to Wat Phra Viharn which rests on the top of this mountain and
consists of five levels sloping off to the right.
Looking back down the second tier pathway.
Looking back down the third tier pathway towards Thailand.
Deferred reconstruction on Wat arches
Leaning wall of upper tier Wat building
One of the Wat gateways.
Inner covered corridor of upper Wat building
Detailed Doorways of Wat.
Carved steps with neighboring mountains as the backdrop.
Looking up the pathway to Wat.
View of neighboring mountains from Wat Phra Vihan
Detailed doorway of one of the Wat buildings.
Remains of one of the stone guards.
Facing onto the top tier or the fifth level Wat.