The Most Beautiful Spas in the World — and Which Treatments to Try!

Spa overview: What was once a monastery has been transformed into a gorgeous modern hotel, the Augustine, with nods to its 1284 roots. The enchanted space has an outdoor garden restaurant and a sexy, speakeasy-inspired bar. But downstairs is where you'll find us at the tranquil spa, which features treatments and recipes passed down from the Augustinian monks. In addition to creative services, there are steam rooms, saunas, and a quiet lounge area (we recommend the ginger tea for your drink of choice).

Bonus: You can use your Starwood (SPG) points to stay here.