Ключевые слова: architecture, balkan, balkan peninsula, canyon, christian, christianity, church, cross, culture, dimitrovgrad, erma, erma river, europe, forest, gorge, historical, history, jerma, landmark, landscape, medieval, monastery, monument, mountain, nature, orthodox, outdoor, panorama, pirot, poganovo, poganovo monastery, poganovo monastery of st john theologian, religion, river, rock formation, rocks, season, serbia, serbian church, sight, sightseeing, spring, stara planina, tourism, travel, watter,