Ha Long is a coastal city in Quang Ninh Province in northeastern Vietnam, best known as the gateway to Ha Long Bay. The city stretches along the Gulf of Tonkin and combines a modern waterfront, residential districts, fishing communities, and port facilities. Offshore, Ha Long Bay contains hundreds of limestone islands and islets rising from the sea, creating a landscape shaped by geological and marine processes.

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.

Cayenne, the lively capital of French Guiana, sits where the Cayenne River meets the Atlantic Ocean, blending South American rhythms with French-Caribbean influence. While it's officially part of France, Cayenne feels worlds away from Paris, with colorful markets, colonial architecture, and a language mix that includes French, Creole, Portuguese, and Indigenous dialects.

Antigua and Barbuda are located in the middle of the Leeward Islands in the Eastern Caribbean. Antigua, the largest of the British Leeward Islands, is about 14 miles long and 11 miles wide, encompassing 108 square miles. Barbuda, a flat coral island with an area of only 68 square miles, lies approximately 30 miles to the north. The population is approximately 68,000 and its capital is St. John's on Antigua.

Reggio Calabria, located at the tip of Italy’s toe, is a city where ancient history and natural beauty converge in spectacular fashion. One of the city's most renowned landmarks is the Bronzi di Riace, two magnificent bronze statues from the 5th century BC that were discovered off the coast of Riace in 1972.