Ключевые слова: ancient, architecture, art, authentic, books, building, bulgaria, bush, calm, culture, cupola, europe, exterior, facade, flower, grass, hiking, historic, knowledge, landmark, learning, library, metal, monument, mosque, nature, old, osman pazvantoglu, pinnacle, public, roof, season, stone, structure, summer, tourism, town, tree, vidin, windows, yard,