Ключевые слова: altar, ancient, asia, buddha, buddhism, buddhist, buddhist temple, cave, da nang, decoration, decorative, heritage, hoa nghiem, hoa nghiem cave, huyen khong, huyen khong cave, indochina, indoor, inside, interior, limestone, marble, marble mountain, marble mountains, monument, mountain, mountains, nature, no people, old, oriental, pagoda, religion, religious, rock, sacred, saint, sanctuary, sculpture, shrine, sightseeing, statue, stone, temple, underground, vietnam, vietnamese, worship,