Fodor's Expert Review Artesian

They don't take reservations at this jewel box of a cocktail bar at The Langham hotel, but you can order a drink while you wait for a chic mirror-top table surrounded by some of London's most beautiful people. The innovative, creative cocktails involve exotic ingredients, like aromatic bitters all the way from Marrakesh, and are simply unforgettable, if pricey. Service is also top-notch, making this a nightlife treat.