Riyadh blends stories from centuries with modern splendor. At its core stands Al Masmak Fortress, built of clay and mud-brick in the 19th century. It was the site that set the stage for the unification of Saudi Arabia. Today, it’s a museum that preserves weapons, historical displays, and accounts of that pivotal moment. Adjacent to the fortress, the Souq Al-Zal offers spices, traditional jewelry, and handmade crafts, connecting visitors to the city’s past through its alleyways.

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.

Lake Ouachita is a large reservoir in west-central Arkansas, surrounded by the forested hills of the Ouachita Mountains. The lake lies within the Ouachita National Forest and has a highly irregular shoreline formed by numerous coves, islands, and wooded peninsulas. Its clear water and undeveloped shoreline distinguish it from many reservoirs in more urbanized parts of the state.

Barranquilla sits near the mouth of the Magdalena River on Columbia's Caribbean side. It is a major seaport and a center of commerce, but everyone breaks loose for four days in February for one of the liveliest carnivals outside of Rio.

Its legacy as the former imperial capital of Vietnam is just one of many reasons to visit Hue. For more than a century, the emperors of the Nguyen dynasty (1802-1945) ruled from the Forbidden Purple City, the innermost enclosure of the citadel. Today, this complex is designated as a UNESCO World Heritage site and draws millions of visitors each year.