As noted in the previous gallery, Prasat Phanom Rung is a Khmer temple in Isaan's Buriram Province. It is sited atop an extinct volcano that had been a place of Hindu worship from at least the 8th century AD. Dedicated to Shiva, the temple was built over a period that spanned the 10th to the early 13th century.
The photos are in two separate galleries for the sake of convenience when viewing them on mobile devices. This gallery has vertically-oriented pictures; the other has photos that are in a horizontal (or landscape) format. To get a reasonably complete picture of the temple, both galleries should be seen.