Canfranc Estación, a Royal Hideaway Hotel

A grand old railway station in the Aragonese Pyrenees, ornate enough to make you question who approved the budget, is now a hotel carrying two Michelin Keys. The 104 rooms lean into early 20th-century style without skimping on modern comfort, and the spa is generously sized, which makes sense when you consider the building stretches on almost indefinitely. The on-site restaurant holds a Michelin star.