Ключевые слова: ancient, antique, archeology, attraction, carst, catacomb, cave, caving, chalk, cliff, color, dark, earth, formation, geological, geology, golden, grotto, history, hole, humid, illuminated, landscape, limestone, majestic, mineral, monumental, mountain, mystery, natural, nature, orange, palaeolithic, park, river, rock, russia, scary, staircase, stalactite, stalagmite, steps, stone, subterranean, tourism, transylvania, travel, underground, water,