Rome

Rome is the only city where two thousand years of history are stacked on top of each other and you walk through all of them in a single afternoon. The Colosseum and the Forum anchor the ancient layer. The Vatican Museums and the Sistine Chapel represent the greatest concentration of art ever assembled by a single institution. And then there is the actual city: Trastevere's cobbled lanes still running on neighborhood rhythms, Testaccio's working-class food culture (this is where carbonara lives — not some romanticized village, a former slaughterhouse district), the Jewish Ghetto's artichokes alla giudia, Monti's independent shops, and piazzas and fountains that function as living rooms for an entire city. The free nasoni drinking fountains throughout the centro mean you never pay for water. Gelato quality varies wildly — the word "artigianale" and a sign listing seasonal ingredients are what to look for. The chaos — traffic, noise, August closures — is real, but it is also the texture of a city that has been continuously inhabited for 2,800 years and has never once stopped. Come in April, May, September, or October. Avoid August like it is a punishment.