Seward is a coastal city at the head of Resurrection Bay on Alaska’s Kenai Peninsula. Mountains rise around the community, while its harbor opens toward the Gulf of Alaska. The city is an important gateway to Kenai Fjords National Park and a center for commercial fishing, marine transportation, and outdoor recreation. Seward also marks the southern terminus of the historic Iditarod Trail.

Sandwich, Massachusetts, occupies the Upper Cape near the eastern end of the Cape Cod Canal and is recognized as the oldest town on Cape Cod. Its historic center combines colonial-era homes, a village common, small shops, galleries, and landmarks around Shawme Pond. The town extends from inland woodlands and freshwater ponds to salt marshes and Cape Cod Bay, giving it a varied coastal landscape.

Coursing through 10 countries, the Danube is the second-longest river in Europe. This waterway, lined with fortresses and castles, rises in Germany's Black Forest and runs for 1,770 miles to the Black Sea. The Danube is an essential commercial thoroughfare for central and southeastern Europe, and several river cruise companies sail vessels on it year-round. Destinations along this river include Vienna, Budapest, Passau and Bratislava.

The name is not an exaggeration. Here 100-foot high glaciers and precipitous mountains present an incomparable panorama, a riot of color in white, red, yellow and blue.

Gainesville is a north-central Florida city known for its university community, natural areas, and strong connection to education and research. The city is home to the University of Florida, whose campus is a major part of local life and culture. Gainesville is surrounded by rolling terrain, freshwater springs, forests, and wetlands, giving it a landscape that differs from Florida’s coastal cities.