Rome Cavalieri
This five-star resort, which is part of Hilton's Waldorf Astoria collection, is everything you could hope for in a hotel and more. Situated on the verdant Monte Mario hill, just 15-minutes' drive north of the Vatican, the Cavalieri provides the perfect spot to sunbathe, swim and gaze out from. The palatial building is surrounded by lush Mediterranean gardens, where you'll find three pools, two tennis courts, a fitness trail, exceptionally equipped spa, two restaurants – including the Michelin-starred La Pergola on the rooftop – and four bars. You won't want to leave, but if you do you can hop on the hourly free shuttle from the hotel to Via Veneto.