Ключевые слова: aerial, aerial view, bottom, bulgaria, bulgarian, cascade, countryside, dam, drone, engineering, faith, geological, gorge, hydro, jrebchevo, landmark, landscape, majestic, meadow, nature, nikolaevo, nova zagora, old, power, region, reservoir, resource, rural, scenics, sight, sightseeing, sliven, stara zagora, stone, structure, summer, terrain, thrace, travel, view, water, wilderness, window, zhrebchevo, zhrebchevo reservoir,