This chic hotel brings a classy, contemporary look to a revamped 19th-century townhouse close to the Templo de Diana. Each of the 18 rooms is different and the beds supercomfy. The bigger the room, the better the deal. Split-level suites have in-room hot tubs and showers. There's a compact on-site spa complex (nonguests €50). For this price, the breakfast is tiny.