Wine ageing in oak barrels in a cellar at a winery in the Alto Douro region of Portugal, Europe

photography colour colour image color color image horizontal horizontal image indoors inside background people incidental people people in the background travel travel destination travel destinations tourist destination food and drink industry wine ageing oak barrels barrel cellar viniculture douro wine making winery alto douro portugal portuguese europe european building exterior building buildings building interior building interiors interior interiors rows in a row in a line lined up diminishing perspective vanishing point perspective storage