unesco world heritage, the douro valley beautiful endless lines of vineyards, in sao joao da pesqueira, viseu.

above abundant agriculture background beautiful countryside cultivation curves destination douro empty endless europe farm field from geography geometry grape green grow heritage hill joao landscape lines mountain nature nobody outside patrimony pattern pesqueira plantation portugal portuguese river rural sao scenic space travel unesco valley view vineyard vineyards viniculture viseu viticulture wine winery world yard