This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers. Hop on a cable car, one of the city's most popular attractions, for stunning city-wide views, or cruise down the Rhine to spot some of Koblenz's magnificent fortresses and castles, including the Ehrenbreitstein Fortress and Schloss Stolzenfels.

Portimao is a port city on the southern coast of Portugal and offers easy access to some of the country's best beaches.

Funafuti Atoll, the capital of Tuvalu, is a narrow strip of land wrapped around a brilliant turquoise lagoon that stretches over 20 kilometers across. Despite being just 600 meters at its widest point, Funafuti is the heartbeat of the country, where government buildings, homes, schools, and the island’s only airport all coexist along sandy roads lined with coconut trees.

Located on Ecuador's central coast, Manta is a port city frequented by many South American cruises. Manta is known for its delectable seafood and variety of pleasant beaches.

The Maldives, a nation of islands scattered across the Indian Ocean, is known for its dazzling turquoise waters, white-sand beaches, and vibrant coral reefs. Stretching across 26 atolls, this tropical paradise is often described as one of the most beautiful places on Earth.