This upscale boutique hotel, with just 12 rooms, is housed in a gorgeous historic mansion less than 10 minutes from the Trevi Fountain. Despite its small size, the hotel goes above and beyond with the amenities, offering a gym, spa, lovely outdoor garden, excellent free breakfast, and free Wi-Fi. The rooms blend elegant decor (antique furniture and artwork, patterned bedspreads, crown moldings) with modern technology (iPod docks, flat-screen TVs). The luxurious, large marble bathrooms are the highlight -- all have separate showers and tubs. Many of the rooms overlook the hotel's private courtyard.