the viewpoint in metallic structure

roof architecture wood facade house wall property walkway home floor estate stairs siding window flooring building handrail iron ujo-viewpoint viewpoint structure stairs metal step architecture construction rust travel são-mamede ribatua safres alijó alto-douro trás-os-montes north-region vila-real tua-valley regional nature-park tua-valley-regional-natural-park douro mountains tua-river landscape sky road bridge walk wall monument blue promenade tourism tourist stroll photography portugal são-mamede-de-ribatua ujo iron village nature attraction montagna grid