From grand castles to resplendent cathedrals, Tallinn’s Old Town neighborhood, a UNESCO World Heritage Site, is the perfect place to begin exploring. Enter through Viru Väravad, or Viru Gate, the former fortress whose remaining two towers beckon you into the heart of the city.

Townsville, perched on the northeastern coast of Queensland, is a city where tropical charm meets rich heritage. Once a strategic military base during World War II, Townsville still carries echoes of its past through sites like the Townsville Heritage Centre. The Strand, a scenic, palm-lined beachfront promenade, serves as a gathering place for locals and visitors alike, where weekend drum circles and food trucks bring the esplanade to life.

La Palma (also San Miguel de La Palma) is the fifth of Spain's Canary Islands. This mountainous volcanic island is a natural wonder of tropical vegetation. Its coast is lined by jagged cliffs and plunging ravines, and its beaches are covered with black sand. Thanks to dry climate and the height of its mountains creating excellent observation conditions, La Palma has become the home of some of the world's largest telescopes, seated on the rocky ridge called El Roque de los Muchachos.

St. Helena is a remote island in the South Atlantic Ocean, known for its dramatic cliffs, volcanic landscapes, and rich history. It is most famous as the place where Napoleon Bonaparte spent his final years in exile, and visitors can explore Longwood House and other historic sites that tell the story of this period.

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.