Exceptionally warm and welcoming, this is a true boutique hotel (just six rooms), occupying the second floor of an early-20th-century palazzo. The chic interior blends antiques, vintage [‘]60s pieces, and modern design in a way that’s happily retro and quite comfortable; each room comes with an iPad and flatscreen TV. Add the friendly, fun owners (Marco and Serena) and excellent location near Via Veneto, and Deko is understandably hugely popular. Reservations generally must be made months in advance, though you can find the occasional last-minute bargain.