Ключевые слова: architecture, asia, asian, attraction, buddhism, buddhist, carved, cave, cavern, caves, chinese, culture, dark, environment, formation, geologic, geological, geology, indoor, ipoh, landmark, limestone, malaysia, monastery, murals, natural, nature, perak, prayer, public, religion, religious, rock, sanctuary, scene, speleology, spirituality, statues, stone, taoism, temple, tong, tourism, underground, vacation, workship,