#1: Rescue Spa: Stop by this cult-favorite spa in the Flatiron district for everything from Biologique Recherche facials to deep-tissue massages and mani-pedis. It’s a bit pricer than your average spa (facials range from $175 to $350; and massages start at $175) but when you’re looking to splurge, you really can’t go wrong here. My favorite treatment? The Rescue Facial, which incorporates LED skin lights to target breakouts and boost circulation.