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.

Cardigan sits on the west coast of Wales, where the River Teifi reaches the wide sweep of Cardigan Bay. At the heart of town stands Cardigan Castle, where battlements and gardens overlook the Teifi. The castle’s history includes the first recorded National Eisteddfod in Wales, a cultural competition of music, poetry and performance that still inspires events across the country.

Kenai, Alaska, is a captivating destination for those seeking an authentic Alaskan experience. Situated on the Kenai Peninsula, this charming town offers stunning views of Cook Inlet and the surrounding mountains. Visitors can explore the Kenai National Wildlife Refuge, renowned for its diverse wildlife and breathtaking landscapes. Fishing enthusiasts flock to the Kenai River, which is famous for its world-class salmon runs.

Granada, Nicaragua, founded in 1524, is one of the oldest European-established cities on the mainland of the Americas where visitors can explore cobblestone streets lined with brightly painted facades. The mustard-yellow Granada Cathedral dominates the central park and provides an easy reference point for those navigating the city on foot or by traditional horse-drawn carriage.

Amarante, located in Portugal’s northern region of Tâmega e Sousa, sits quietly along the banks of the Tâmega River, framed by stone bridges, historic churches, and lush hills. The city is best known for its connection to São Gonçalo, a 13th-century monk whose name now graces the arched bridge and the grand convent-church that stands beside it.