ROME

It famously straddles seven hills, but Rome often feels like several cities. There's the ancient one, of course – the Rome of emperors and amphitheaters, still visible today. Then there's grand, baroque Rome, a city of immense squares, florid churches and fountains, each more spectacular than the next. There's the Dolce Vita vibe, still, in elegant boutiques, bars, and restaurants, and landmark hotels still on Via Veneto. But Rome is also modern, with formerly residential neighborhoods such as Testaccio, Monti, and Ostiense now as attractive to tourists for their nightlife as the classic areas.