If you crave rich, full-bodied wines, the Douro Valley in Portugal is a treasure trove. This UNESCO World Heritage site is renowned for its steep terraced vineyards, where the schist soil nurtures indigenous grape varieties like Touriga Nacional and Tinta Roriz. The region produces exceptional Port and bold reds, showcasing intense flavors and vibrant acidity. Notable sub-regions like Cima Corgo reveal unique terroirs, while traditional foot-stomping techniques add a cultural richness to this historic winemaking landscape.