All 37 rooms of this 19th-century boutique hotel have large French doors opening to the street (they’re soundproof when closed). Near the Plaza Isabel I and the Teatro Real (Madrid’s opera house), the hotel is an easy walk to Plaza Mayor and Puerta del Sol. The black-and-white-striped wallpaper in the halls and the gray-on-gray rooms with dark-wood floors and antique curved headboards suggest a French city inn. Bathrooms are a mix of light and deep gray marble with large glass standing showers. The hotel was named for Las Meninas, the famous 1656 Velázquez painting of King Philip IV’s young daughter, the Infanta Margarita—her image appears everywhere, from the soaps to faint impressions on the linens.