Oh ho, now we bring on the French lingo? Fine. I figured this was Angkor, that being the sum total of my knowledge of Cambodian archeological sites, but aerial views show a distinct lack of vertiginous cliffs. I find references on the web to a temple called “Preah Vihear, located in the Dangrek Mountains.” But it seems a bit large for a temple.
Long way to go for the view - most people would want a nap after the first flight of stairs - but it was probably worth it. And you know the King enjoyed peeing off the tip of the cliff. Just because he could.