Whether exploring ancient ruins or strolling through its modern city center, visitors will find plenty to discover in Nijmegen, the oldest city in the Netherlands.

Regina, Saskatchewan’s capital, is a city with deep roots and wide-open skies. Originally established as a key stop on the Canadian Pacific Railway, Regina quickly grew into a political and cultural hub. Today, visitors can explore its past at the Royal Saskatchewan Museum, which features life-sized dinosaur exhibits and an extensive First Nations gallery.

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.

São Tomé Island, the larger of the two islands in São Tomé & Príncipe, offers travelers a balance of culture, history, and dramatic natural scenery. Its capital, São Tomé city, is a coastal hub filled with colonial architecture, lively markets, and a welcoming atmosphere.

From grand castles to resplendent cathedrals, Tallinn’s Old Town neighborhood, a UNESCO World Heritage Site, is the perfect place to begin exploring. Enter through Viru Väravad, or Viru Gate, the former fortress whose remaining two towers beckon you into the heart of the city.