A moving sight...literally. Hubbard Glacier's recent nickname "the galloping glacier" refers to its rapid movement through Disenchantment Bay in the direction of the Gulf of Alaska. This tidewater glacier is a natural wonder over 6 miles wide! Those on ships are usually able to get within about a half mile of Hubbard Glacier's face.

Córdoba, located in the heart of Andalusia, was once the most advanced city in Western Europe. During the 10th century, it served as the capital of Al-Andalus and was a center for learning, science, and art. Today, visitors walk the same streets that philosophers, poets, and physicians once crossed. The city’s most famous landmark, the Mezquita-Catedral, reflects its layered past. The red and white horseshoe arches inside are one of the most photographed interiors in Spain.

Originating as a tiny fishing village in 1038, modern Kehl has become an important link between Germany and France. Rhine River cruises most often use Kehl as their gateway to the much larger and better-known Strasbourg. The savvy traveler, though, might choose to skip the jaunt across the river and enjoy many similar sights, shopping and cuisine as those offered in the teeming French city.

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.

Colonia del Sacramento is where time lingers. Founded in 1680 by the Portuguese and later contested by the Spanish, the town’s past is etched into its cobblestone streets and weathered facades. The Barrio Histórico, a UNESCO World Heritage Site, is compact enough to walk in an afternoon yet layered with centuries of stories. Visitors can explore remnants of the original city walls and climb the iconic lighthouse for sweeping views of the Río de la Plata.