The Spa at Mandarin Oriental Las Vegas

Start with the mud—Moroccan rhassoul clay you’ll slather all over your face and body. Step into a heated room where the paste dries, pulling impurities from the skin, then an aromatic steam rises, letting your body absorb the mud’s minerals. Finally, a light drizzle washes it all away. This spa inspired by the decadence of 1930s Shanghai is packed with amenities, from relaxation lounges to a starlit hammam and even an “ice fountain.” The hardest part is tearing yourself away. Well, that and not caressing your velvety soft skin for the rest of the day.