Santa Marta, located on Colombia’s northern Caribbean coast, is one of the country’s oldest cities, founded in 1525. It has long served as a gateway between the coast and the Sierra Nevada de Santa Marta, the world’s highest coastal mountain range.

Zagreb, the vibrant capital of Croatia, is a city where history, culture, and a youthful spirit collide in an unforgettable way. Wander through the cobblestone streets of the Upper Town (Gornji Grad) and marvel at its medieval architecture, such as the iconic St. Mark's Church, known for its colorful tiled roof depicting the coat of arms of Zagreb and the Kingdom of Croatia.

Santarém is a city in central Brazil, located where the Tapajós River meets the Amazon. Its position at this confluence has made it a hub of riverine trade and cultural exchange for centuries, blending Indigenous traditions with Portuguese colonial influence.

Grand Rapids sits along the Grand River in western Michigan, shaped by industry, reform, and a strong civic culture.

The Loire Valley stretches along the gentle curves of France’s longest river, a place where riverside towns, historic estates and vineyards have shaped daily life for centuries. This long stretch of landscape was recognized as a UNESCO World Heritage Site because of its remarkable cultural landscape, which includes towns like Tours, Blois, Amboise and Saumur and a tapestry of castles standing beside the river banks.