Denver, Colorado, known as the “Mile High City” for its elevation exactly 5,280 feet above sea level, offers far more than a mountain backdrop. It’s a city where old saloons, Victorian homes, and vintage brick warehouses sit beside sleek skyscrapers and buzzing food halls. While the nearby Rocky Mountains are visible from almost anywhere in the city, places like City Park and Washington Park offer wide green spaces right in town.

This 2,000-year-old city, where the Teutonic Order founded one of its first commanderies in the 13th century, lies on the convergence of the Moselle and Rhine Rivers.

Rhode Island may be the smallest state in the U.S., but it offers an outsized variety of experiences, from colonial history to coastline escapes. Founded in 1636 by Roger Williams as a haven for religious freedom, the state still reflects its independent spirit. In Providence, travelers can visit the John Brown House Museum to explore the city’s role in early American commerce, or walk Benefit Street, lined with preserved 18th- and 19th-century homes.

Glastonbury, a town in Somerset, England, is steeped in mysticism and historical allure. Known for its rich Arthurian legends and spiritual significance, Glastonbury is a must-visit for those fascinated by mythology and history. The town’s centerpiece is the majestic Glastonbury Abbey, a grand ruin once one of the most powerful monasteries in England. Founded in the 7th century, the Abbey is famously linked to the legend of King Arthur and his supposed final resting place.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.