Casa Montani $$$$
Concierge.com's insider take:
A five-room bed-and-breakfast with the soul of a much bigger design hotel, Casa Montani has become a solid word-of-mouth success since its November 2007 opening. Located just outside Piazza del Popolo, a ten-minute walk from the Spanish Steps, the third-floor guest house was once a typical Roman apartment, but it was given a stylish makeover by architect Liliana Sciacca. While no expense has been spared, it's not the Designers Guild fabrics, Shantung silk curtains, nor bathrooms in Ligurian slate or local travertine that seal the deal so much as the sheer urban elegance of the place. The only communal area is a small library-lounge, and the rooms have little view to speak of—with the exception of the suite, which has a ringside view of Piazza del Popolo and the twin bell towers of Trinità dei Monti beyond. But Casa Montani's intimate interiors make this a good place for cocooning after a hard day's sightseeing (the Flaminio metro stop is just outside), and the fact that breakfast is served in your room contributes to the cozy atmosphere.