Building, Column, Pillar, Archaeology, asia, southeastasia, cambodia, siem reap, siemreap, khmer, angkor, angkor temple, temple, temples, angkor temples, khmer temple, ruin, ruins, landmark, temple ruins, preah khan, wat perah khan, preah khan temple, building, devastation, landmass, district, decay, unsoundness, austro-asiatic, deterioration, asian country, mon-khmer