Ключевые слова: ancient, apuseni, background, bear, bears, bihor, cave, dark, discovery, east, fossil, geology, hall, historical, history, landmark, landscape, light, limestone, mineral, monument, mountain, mountains, nature, river, rock, romania, secret, spelaeus, stalactite, stalactites, stalagmite, stalagmites, stone, texture, tourism, transilvania, travel, underground, ursus, village, wall, water, wet,