Urban, Town, Downtown, Architecture, city, national, national capital, city centers, city center, european, european union, palace, capital city, culture, sofia, europe, bulgaria, dwelling, urban, house, seat, society, city district, mansion, subject, landmass, district, balkan country, housing, european country, capital, town, metropolis, urban area, downtown, urban center, building, center, person, architecture, castle
The National Palace of Culture, Sofia, Bulgaria, Europe