view of gopura iv courtyard with carved colonettes at the 11th century preah vihear temple

11th ancient angkor architecture art asia asian blocks buddhist building cambodia carved century colonette courtyard craftsmanship dangrek decoration detail doorway entrance gopora grass green heritage hindu khmer landmark lichen line monument mountains outdoors prasat preah province religion religious remote roof ruin sandstone site sky spirituality stone structure temple triangle tropical unesco vihea vihear wall wat window world