aerial view of the douro valley, with the terraced vineyards, the tua river and the village of sao mamede de ribatua, in vila real

aerial agriculture alto beautiful concept copy country countryside culture destinations douro drone famous heritage hills iberia iconic landmark landscape landscapes mamede most mountains nature pattern port portugal portuguese real region ribatua river rural sao scenic site slopes space terraced terraces travel tua unesco upper vale valley view vila village vineyards vinhateiro viticulture wine winemaking world