Terraced vineyards in Douro Valley, Alto Douro Wine Region in northern Portugal, officially designated by UNESCO as World Heritage Site
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Keywords: agriculture, agronomy, country, countryside, crop, cultivate, cultivation, douro, duero, europe, exterior, grow, grower, growing, heritage, industry, landscape, locations, natural, nature, outdoor, plant, portugal, production, raising, river, rural, scenic, travel, unesco, valley, vineyard, viniculture, viticulture, western, wine, world