Emerge

The mother of all Newbury Street spas, the palatial multistory Emerge, which opened in 2006, really does offer everything: from cosmetic fillers (by appointment) to caviar facials and classic manicures. There's a dedicated Men's Club too; a whole floor of segregated guy heaven with plasma screen TVs. For a complete day of self-indulgence, try the seven-hour top-to-toe Ultimate Emerge Experience, which includes a LaStone massage, aromatherapy, a moor mud pedicure, caviar facial and more.