Novi Sad, Serbia’s second-largest city, sits along the banks of the Danube River and has long served as a cultural meeting point in the Balkans. Its centerpiece is Petrovaradin Fortress, a massive 18th-century stronghold nicknamed the "Gibraltar on the Danube." The fortress is known not just for its historic architecture but also for its network of underground tunnels and the iconic clock tower where the hands are reversed, meaning the large hand shows the hour.

Ancient history comes alive in Athens, the capital of Greece. Gaze in wonder at the Acropolis and its iconic crown, the Parthenon. Take a deeper dive into the past and visit both the Acropolis Museum and the National Archaeological Museum, which house fascinating artifacts from this ancient city.

Tobermory is the main settlement on the Isle of Mull in Scotland’s Inner Hebrides, arranged around a sheltered natural harbor on the island’s northeast coast. Its waterfront is lined with brightly painted buildings, many of which house shops, cafés, galleries, restaurants, and guesthouses. The harbor remains active with fishing boats, pleasure craft, and ferries, while the surrounding hills rise behind the town.

Ely, Minnesota, sits on the edge of the Superior National Forest in the state’s Northwoods, where boreal forest, rocky terrain, and interconnected lakes define the landscape. The community is best known as a major gateway to the Boundary Waters Canoe Area Wilderness, which contains more than one million acres of protected forest and waterways along the Canadian border. Ely itself has a compact downtown with independent shops, galleries, restaurants, and outfitters serving wilderness travelers.

Southampton is a city shaped by the sea. Located on the southern coast of England, it has been a key maritime port for centuries. In 1912, the RMS Titanic set sail from its docks, and today, the SeaCity Museum tells the story through the lives of local residents connected to the voyage. The medieval city walls, which are some of the best-preserved in England, still stand, offering a walk through time with views of old merchant houses, towers, and hidden vaults once used to store wine and wool.