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.

This gorgeous, breezy island is a lively paradise without equal. A celebratory atmosphere will be found here, from dance clubs and DJs to summer tourists simply reveling in the good life.

Sognefjord, often called the “King of the Fjords,” is the longest and deepest fjord in Norway, stretching more than 200 kilometers inland from the North Sea. Towering cliffs rise dramatically on both sides of the water, some reaching over 1,000 meters high. Its size alone makes it a natural wonder, but what truly sets it apart is how the landscape changes along its length from wide, tranquil stretches to narrow passages where waterfalls plunge down sheer rock walls.

Georgia, nestled at the crossroads of Europe and Asia, is a country defined by dramatic landscapes, rich traditions, and a deep sense of history. The snow-capped Caucasus Mountains rise in the north, offering scenic hiking trails and ancient villages, while the Black Sea coastline in the west provides a warmer, more relaxed atmosphere.

Guanajuato, a UNESCO World Heritage City nestled in the mountains of central Mexico, is a place where history is built into every hillside alley and underground tunnel. Today, visitors can still tour La Valenciana Mine, where centuries-old tunnels and original mining equipment offer a glimpse into the city's wealth-driven past. The nearby Templo de San Cayetano, built by mine owners in the mid-1700s, is a stunning example of baroque design, lined with gilded altars and intricate woodwork.