europe, portugal, lisbon, lissabon, lisboa, city, old town, architecture, landmark, belem, torre de belem, fort, castle, wall, white, concrete, paint, museum, national capital, dwelling, palace, facility, house, coating, seat, mansion, port, landmass, district, military post, housing, european country, capital, military installation, metropolis, urban area, building material, urban center, paving, building, center, garrison