Ключевые слова: aerial, aerial view, balkans, bulgaria, canyon, cascade, church, church saint john the baptist, dam, engineering, environment, europe, forest, geological, hill, hydro, hydroelectricity, landmark, landscape, meander, mountain, natural, nature, orthodox, panorama, pchelina, pchelina reservoir, pernik, pernik region, power, raomir, reservoir, resource, river, saint john the baptist, scenics, sight, sightseeing, struma, struma river, terrain, tourism, travel, tree, view, water, wilderness,