Ключевые слова: balkans, bulgaria, bulgarian, city, cliff, cliffs, countryside, culture, denudation, eroded, erosion, forest, formation, geological, geology, gorge, hiking, hill, hunted, landmark, landscape, limestone, mountain, natural, nature, outdoors, panorama, peaks, phenomenon, pirin, pyramid, pyramids, sand, sandstone, scenic, sedimentary, shape, shapes, sharp, skirt, sky, stabbed, tourism, trail, travel, tropical, unique, valley, view, yellow,