2The Acropolis, Greece

One of the world’s most iconic UNESCO sites and a top attraction in Athens, the Acropolis boasts many ancient ruins, including an amphitheater, a temple to the goddess Athena, and the Parthenon, the most famous of all.

For the best experience arrives early in the morning, right when the gates open at 8 a.m., or late afternoon after the tour groups have departed.