Steeped in history, Canterbury, England is a must-visit destination for lovers of medieval charm and religious significance. The centerpiece of this historic city is Canterbury Cathedral, a UNESCO World Heritage Site that has been a place of Christian worship since the 6th century. As the seat of the Archbishop of Canterbury, it is one of the most important religious buildings in England.

Mist, research stations, and penguins are just a few of the things that define the South Shetland Islands, an archipelago off the coast of Antarctica. These 11 Antarctic islands, most notably King George Island, have served as a base for researchers from Chile, Argentina, and a variety of other countries. The archipelago has also become a popular cruise destination for tourists to the Antarctic region.

France's capital and most populated city, Paris is an alluring destination and an essential stop for any global traveler. A center of fashion, gastronomy, and the arts. Major tourist attractions in the City of Lights include the Eiffel Tower (such great heights!), the Louvre (home of the Mona Lisa and Venus de Milo), the Arc de Triomphe, and Grand Palais.

Seven miles outside of historic Athens, the Greek coastal city of Piraeus lies upon the sparkling waters of the Aegean Sea and is the largest passenger port in Europe, servicing nearly 20 million passengers per year.

Denmark is a country shaped by water, wind, and centuries of human ingenuity. In places like Roskilde, visitors can see five original Viking ships at the Viking Ship Museum and even try rowing a replica longboat across the fjord. In Copenhagen, the harbor once used by merchants and sailors now welcomes swimmers, kayakers, and ferries, with historic warehouses repurposed into restaurants and museums.