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.

Nestled on the banks of the Danube River, Vidin, Bulgaria, is a city where history and scenic beauty converge. This ancient city, known for its well-preserved medieval fortress, the Baba Vida Castle, offers a unique glimpse into Bulgaria's past. The fortress, dating back to the 10th century, stands as one of the best-preserved medieval fortifications in the country.

Merida was once the sprawling capital of the Mayan empire and the center of their universe. Merida is now the center of a cosmopolitan universe, built on Mayan heritage, and given a unique twist by French and Mediterranean immigrants. Days are spent exploring the city's many museums and equally fascinating shopping districts. At night, local music can be heard from just about every park in the city, inviting newcomers to enjoy a romantic and fun-filled evening.

Bhaktapur, located just east of Kathmandu in Nepal, is a city where time seems to slow. Famous for its well-preserved medieval architecture, it is often called a “living museum” due to its abundance of temples, palaces, and courtyards.

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.