view with the fernandine walls of porto, porto, portugal

agostinho architecture bay bridge buildings cais church city cityscape cloud coast colorful culture dawn destination dusk embankment europa european evening facades gaia harbor heritage hill history horizon houses igreja landmark monastery morning mosteiro nova old oporto picturesque pier pilar port porto portugal portuguese reflection ribeira river riverfront roofs rooftops santo sea serra shore site sky skyline sunset tourism town traditional travel typical unesco urban vacation vila vinho vintage waterway world