Set at the meeting point of Brazil and Argentina, Foz do Iguaçu is defined by the sheer scale of the Iguaçu Falls. Nearly 275 individual waterfalls stretch across close to three kilometers, sending mist into the air and sound echoing through the surrounding forest. Visitors follow raised walkways that bring them face to face with this moving wall of water, culminating at the dramatic Devil’s Throat, a deep, curved drop where the river seems to vanish into the earth.

Trier, Germany’s oldest city, is a living museum nestled in the Moselle Valley, where Roman ruins rise beside medieval churches and bustling market squares. Founded by the Romans in 16 BCE, Trier was once known as “Roma Secunda,” the second Rome, and still boasts the largest collection of Roman architecture north of the Alps. The Trier Cathedral (Dom St. Peter), which is a UNESCO World Heritage Site, is the oldest church in Germany and houses a relic said to be the Holy Robe of Christ.

A hundred and forty seven miles from Frankfurt, Bayreuth is an important town the the history of classical music. There's a museum in this town dedicated to the composer who made Bayreuth famous, Richard Wagner. Every year, from the end of July and throughout August, the Bayreuth Festival pays homage to Wagner by presenting various operas he created.

Cancún sits on the northeastern tip of Mexico’s Yucatán Peninsula, where the Caribbean Sea meets a narrow stretch of sand shaped by ancient Maya trade routes and modern development. While widely known as a resort destination, Cancún’s roots trace back to a quiet fishing area near important pre-Hispanic sites, with nearby Isla Mujeres and the mainland serving as part of a broader coastal network connected to inland Maya cities.

Located on the southern coast of Finland at the delta of the Kymi river, the city of Kotka is a major Finnish sea port. Perhaps the best-known attraction of this multicultural and creative city is the country's largest urban maritime festival, an annual celebration that includes boating events, dance and music performances, and Finland's largest parade which marks the beginning of the city-wide event.