Lifou Island, the most populous of the Loyalty Islands in New Caledonia, is a flat, former coral atoll with abundant vegetation and surrounded by secluded coral reefs which many say offer some of the best snorkeling in the world.

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.

Nestled on the banks of the Danube River, Vidin, Bulgaria, is a city where history and scenic beauty converge. This ancient city, known for its well-preserved medieval fortress, the Baba Vida Castle, offers a unique glimpse into Bulgaria's past. The fortress, dating back to the 10th century, stands as one of the best-preserved medieval fortifications in the country.

Whether exploring ancient ruins or strolling through its modern city center, visitors will find plenty to discover in Nijmegen, the oldest city in the Netherlands.

Chiang Rai, nestled in northern Thailand, is a gem of cultural and architectural wonder. At the heart of its allure is the White Temple, or Wat Rong Khun, a striking modern Buddhist temple designed by artist Chalermchai Kositpipat. This surreal structure features intricate white designs and mirrored mosaics that shimmer under the Thai sun, creating a fantastical effect.