Hotel Palacio del Retiro, Autograph Collection
An early-20th-century palace built for a noble family with extravagant habits (the elevator carried their horses up and down from the rooftop exercise ring), this Marriott mixes old-world elegance with modern bells and whistles. Relics of a grand past include baseboards and fountains covered with ceramics from Talavera, Parisian stained-glass windows, and full-size Lichtenstein silkscreen prints. Most accommodations feature king-size beds, and some upgraded digs have original parquet floors and intricate fretwork. All rooms have superb views of the nearby El Retiro Park.