Planning on proposing? This ivy-covered palace, just off Piazza Navona, is just the kind of special-occasion place to pick, with luxurious rooms, enthusiastic staff, and a roof terrace with spectacular views across Rome. It’s a gorgeous hotel, with all sorts of 20th-century artwork inside, including Picasso ceramics displayed in the lobby, and paintings by Mirò, Morandi, and De Chirico scattered across the property. The standard rooms are all decorated in Victorian style, with antique furnishings and hardwood floors. But for many, the real attraction here is the chance to stay in the quirky executive suites designed by architect Richard Meier, which feature oak paneling, contemporary art, and Carrara marble in a style that blends contemporary with Asian design.