Aït Benhaddou, located in southern Morocco along the former caravan route between the Sahara and Marrakesh, is one of the country’s most iconic historic sites. This fortified village, or ksar, is recognized as a UNESCO World Heritage Site and is admired for its striking earthen clay architecture that rises dramatically from the desert landscape.

Warnemunde (or Warnemünde) is a port city in Germany and a frequent stop on many Northern European cruises. Across the Baltic Sea from Denmark's capital, Copenhagen, this charming seaside city has a number of delightful attractions, including the Warnemünde Lighthouse, a variety of local shops along the marina, and surfing lessons on the beach.

Guernsey, the second-largest of the Channel Islands, blends coastal landscapes with a deep-rooted history shaped by centuries of outside influence. Though located closer to France than to mainland Britain, Guernsey is a British Crown Dependency with its own government and a distinct identity. The capital, St Peter Port, is a hillside town overlooking a natural harbor, where visitors can explore narrow lanes, stone stairways, and 18th-century buildings.

Sitka is accessible only by air or sea, giving visitors a real taste of this wild frontier. Sitka offers incredible scenery, fishing, hiking, and abundant wildlife. 22 of Sitka's buildings and monuments appear in the National Register of Historic Places.

Grand Turk, the historic and administrative heart of the Turks and Caicos Islands, offers a blend of heritage and relaxed island charm. The small capital of Cockburn Town is lined with 18th- and 19th-century colonial buildings, pastel-colored cottages, and narrow streets that reflect the island’s ties to the salt trade and British colonial past.