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.
Barranquilla sits near the mouth of the Magdalena River on Columbia's Caribbean side. It is a major seaport and a center of commerce, but everyone breaks loose for four days in February for one of the liveliest carnivals outside of Rio.
The Caribbean Sea, a gem nestled between the Caribbean islands and the coastlines of Central and South America, offers a breathtaking escape into a world of azure waters and tropical allure. Encompassing over 2.5 million square kilometers, this sea is renowned for its crystal-clear waters, vibrant coral reefs, and idyllic islands.
Located in the western part of the Yukon Territory Province of Canada, this area is on the Yukon River and famous as the gold mining area of the great Gold Rush. It is still an active mining area and also a popular tourist attraction as it has retained much of the look from the gold rush era.