An open-air museum home to two millennia of architecture, art, and culture, Rome is one of the world’s most visited cities—for good reason. You can spend hours exploring ancient wonders, traveling between attractions, or hunting for the best gelato; but those in the know stay ahead of the crowd with skip-the-line entrance tickets and guided tours. Hop-on hop-off tours allow visitors to breeze through must-do lists, while group visits to the Colosseum, Roman Forum, and Vatican Museums offer a more in-depth experience. For a true taste of Italy, take advantage of the city’s central location with day trips to Pompeii, Tuscany, and beyond.