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Vineyards with red wine grapes for Port wine production in winery near Douro valley and Duero river, Peso da Regua, Porto Portugal Stock Photo | Adobe Stock
![UNESCO World Heritage Centre - Document - Porto Wine vineyards, Alto Douro, Tras-os-Montes, Portugal, Unesco World Heritage site UNESCO World Heritage Centre - Document - Porto Wine vineyards, Alto Douro, Tras-os-Montes, Portugal, Unesco World Heritage site](https://whc.unesco.org/uploads/thumbs/site_1046_0008-500--20120806154017.jpg)
UNESCO World Heritage Centre - Document - Porto Wine vineyards, Alto Douro, Tras-os-Montes, Portugal, Unesco World Heritage site
![Vineyards on terraces by Pinhão, Douro river valley, Porto wine growing area, Portugal Stock Photo - Alamy Vineyards on terraces by Pinhão, Douro river valley, Porto wine growing area, Portugal Stock Photo - Alamy](https://c8.alamy.com/comp/FCE8M3/vineyards-on-terraces-by-pinho-douro-river-valley-porto-wine-growing-FCE8M3.jpg)