Quinta do Seixo is without a doubt the most modern and most commercial of all the Douro Valley's Quintas. It belongs to one of the big four families in the Douro Sogrape Wines, responsible for the invention of the old ambassador for Portuguese wines in the world - Mateus Rosé. When you step into the winery you almost feels like entering a designer's dream of how a place where wine is made should look like. There are almost no curve lines and the interior walls are all painted in black. There is even a raised walkway from where you can admire the robot steeping on the grapes during harvest season.