Perched like an eyrie on a promontory above the Rio Douro and a spectacular ripple of terraced vineyards – amid the lyrical landscapes of the Alto Douro – Quinta do Crasto quite literally takes your breath away. Stop by for a tour and tasting (of four wines) or lunch (€65 with wine). Call ahead, as groups sometimes storm the place.

The winery produces some of the country's best drops – reds that are complex, spicy and smooth, with wild berry aromas, and whites that are fresh, with a mineral nose and tang of citrus and apples. Designed by Portuguese starchitect Eduardo Souto Moura, the plunge pool here appears to nosedive directly into the valley below.