Just 5 minutes from the Pantheon, this stylish retreat occupies an elegant 17th-century palazzo. Rooms boast a chic and modern vibe, though standard rooms can be a tad utilitarian. A few deluxe rooms and suites have terraces with views of the Roman rooftops. In a crowded hotel market, Adriano stands out for its plush, well-designed common areas, including The Gin Corner, a trendy cocktail bar specializing in . . . you guessed it. Rooms in the nearby “Domus Adriani” are more akin to self-catering apartments. Tip: Email the hotel directly for the lowest rates.