Quinta São Jose do Barrilario Douro Wine Hotel e Spa

The beds are shaped like wine barrels, which sounds gimmicky until you're lying in one staring out floor-to-ceiling windows at terraced Douro vineyards falling toward the river. This Michelin Key luxury wine hotel curves along the hillside above Armamar, with a rooftop infinity pool that does a reasonable impression of a private aircraft. The spa works locally grown grapes into its treatments, and the restaurant pours from the adjacent quinta's own cellar.