9Rome, Italy
As the capital of the ancient world, Rome is a treasure trove of history and culture. From the iconic Colosseum to the majestic Vatican City, the city is filled with architectural wonders at every turn. Visitors can wander through the cobblestone streets of Trastevere, toss a coin in the Trevi Fountain, or savor a traditional Roman meal in one of the city’s many trattorias.