old town porto with tower clerigos torre dos clerigos view with colorful houses, portugal. aquarelle watercolor sketch.

aquarelle architecture banner beautiful bell building buildings card cathedral church cityscape clerigos color colorful concept culture decoration design destination dos douro downtown europe famous greeting heritage historic history house houses interior landmark medieval northern old oporto panorama panoramic photography picturesque port porto portugal portuguese poster religion sightseeing sketch sky skyline style torre tourism tower town traditional travel unesco urban view watercolor wine winery