Ta Keo is a stark, undecorated temple that undoubtedly would have been one of the finest of Angkor's structures, had it been finished. Built by Jayavarman V (r 968-1001), it was dedicated to Shiva and was the first Angkorian monument built entirely of sandstone. The summit of the central tower, which is surrounded by four lower towers, is almost 50m high.
This quincuncial arrangement (with four towers at the corners of a square and a fifth tower in the centre) is typical of many Angkorian temple-mountains. No-one is certain why work was never completed, but a likely cause may have been the death of Jayavarman V.