Civitavecchia is a coastal town northwest of Rome, in Italy. Built in the 2nd century, the Port of Civitavecchia still retains some of its original features, like the Roman Dock. The port area also includes the 16th-century Michelangelo Fort. Nearby, the National Archaeological Museum displays bronze and ceramic artifacts. Northeast of town are the Terme Taurine, the ruins of a Roman thermal bath complex.

Bonifacio is a town on the southern tip of the French island of Corsica. It’s known for its lively marina and medieval clifftop citadel. The 13th-century Bastion de l’Etendard houses a small museum with exhibits on the town’s history. L’Escalier du Roi d’Aragon is 187 ancient steps carved into the cliff face. To the southeast, the uninhabited Lavezzi Islands, a nature reserve, have granite boulders and sandy beaches.

Sorrento is a coastal town in southwestern Italy, facing the Bay of Naples on the Sorrentine Peninsula. Perched atop cliffs that separate the town from its busy marinas, it’s known for sweeping water views and Piazza Tasso, a cafe-lined square. The historic center is a warren of narrow alleys that's home to the Chiesa di San Francesco, a 14th-century church with a tranquil cloister.

Valletta (or Il-Belt) is the tiny capital of the Mediterranean island nation of Malta. The walled city was established in the 1500s on a peninsula by the Knights of St. John, a Roman Catholic order. It’s known for museums, palaces and grand churches. Baroque landmarks include St. John’s Co-Cathedral, whose opulent interior is home to the Caravaggio masterpiece "The Beheading of Saint John."

Chania is a city on the northwest coast of the Greek island of Crete. It’s known for its 14th-century Venetian harbor, narrow streets and waterfront restaurants. At the harbor entrance is a 16th-century lighthouse with Venetian, Egyptian and Ottoman influences. Opposite, the Nautical Museum has model ships, naval objects and photographs. The former monastery of St. Francis houses the Archaeological Museum of Chania.

Mykonos is an island in the Cyclades group in the Aegean Sea. It's popularly known for its summer party atmosphere. Beaches such as Paradise and Super Paradise have bars that blare thumping music. Massive dance clubs attract world-renowned DJs and typically stay open well past dawn. Iconic landmarks include a row of 16th-century windmills, which sit on a hill above Mykonos town.

Piraeus, is a port city within the Athens urban area, in the Attica region of Greece. It is located in the Athens Riviera, 8 kilometres southwest of Athens’ city centre, along the east coast of the Saronic Gulf.