If you find yourself in Rotterdam, there's a strong chance you've arrived by water. This popular port city (the second largest in the Netherlands) has gone through an architectural renaissance since World War II, with daring, innovative structures dotting the city (cube houses!) and defining its skyline. Café culture is on the rise here, so grab yourself a table and a cup.

A true gem on the Caribbean coast, the port city of Cartagena (Cartagena de Indias) welcomes visitors with its charming old town, colonial buildings, and exceptional beaches. A popular cruise ship stop, many seafarers find themselves honorary Cartagenans, as they stroll shady, cobblestone lanes and gaze upon impressive churches.

Haines is a charming stop in the Alaska Panhandle and a gateway to Glacier Bay National Park and Tongass National Forest.

Kangerlussuaq, Greenland, is a gateway to the stunning Arctic wilderness and an essential stop for any intrepid traveler seeking adventure in the icy realms of the north. This remote town, located on the western coast of Greenland, is renowned for its dramatic landscapes, including the vast Søndre Strømfjord, one of the longest fjords in the world.

La Fortuna is a town in northern Costa Rica, located in the San Carlos region at the base of Arenal Volcano. It is known for rainforest landscapes, geothermal hot springs, and outdoor activities connected to the surrounding mountains and rivers.