Located in the heart of London’s Mayfair, Claridge’s has long been a favored hangout spot among Hollywood stars and royalty. Designed by interior architect Andre Fu, the hotel’s expansive spa in inspired by a traditional Japanese temple; it’s impossible not to feel a sense of calm from the moment you step foot inside. The spa features an electrolyte-rich relaxation pool as well as seven luxurious treatment rooms. A wellness concierge is on-hand to craft long-term health plans and there’s a range of treatments available including soothing aromatherapy massages and high-performance facials.