This small yet charming city in Alaska's panhandle is a throwback to the gold rush era. Skagway is a well-preserved part of Klondike Gold Rush National Historical Park.

Oslo, Norway’s capital, stands at the crossroads of Nordic history and forward-thinking design. Originally founded over a thousand years ago by Viking King Harald Hardrada, the city has evolved from a medieval trading hub into one of Europe’s most modern capitals. Visitors can explore its layered past at the Akershus Fortress, a 13th-century stronghold still standing guard over Oslofjord, or walk through the preserved wooden homes of Damstredet.

Alberobello in southern Italy’s Puglia region captures the imagination with its distinctive trulli houses. These structures were built using a dry-stone technique passed down over centuries, without mortar or cement, and their unique form comes from layer upon layer of limestone nestled from nearby fields. Alberobello’s trulli are so remarkable that in 1996 the historic center was inscribed as a UNESCO World Heritage Site, where more than 1,600 of these buildings still stand.

Nestled on the shores of Skjalfandi Bay in northern Iceland, Husavik offers visitors the unique chance to witness humpback whales, minke whales, and even the occasional blue whale in their natural habitat. The town is also home to the Husavik Whale Museum, which provides fascinating insights into the marine life of the region and the history of whaling in Iceland.

Bahrain, the only island nation in the Arabian Gulf, offers a unique blend of ancient heritage and modern flair. Away from the city, Bahrain’s landscape surprises many. The Tree of Life, a lone 400-year-old mesquite standing in the desert with no known water source, continues to puzzle scientists and inspire travelers.