The dazzling capital of the Czech Republic, the explorable Prague has fittingly been nicknamed "the City of a Hundred Spires." Halved by the Vltava River and notable for architecture Baroque, Renaissance, and Gothic, visitors will find much to take in here.

Honolulu, the capital of Hawaiʻi and the largest city in the Pacific, blends the energy of a major urban center with the deep roots of Native Hawaiian culture. Set on the island of Oʻahu, it’s home to iconic beaches, royal history, and a rhythm all its own. This sunny capital city is the main portal to the larger Hawaiian archipelago, and the perfect base for exploring Oahu.

Machu Picchu is a story carved into stone, perched nearly 2,500 meters above sea level in the cloud forests of southern Peru. Built in the 15th century and later abandoned, this Inca citadel was unknown to the outside world until 1911, when explorer Hiram Bingham brought it to international attention. Today, it remains remarkably well-preserved, with more than 150 stone structures, terraced fields, ceremonial fountains, and temples aligned with astronomical events.

Astoria, Oregon is the state's oldest city. Located on the Columbia River near the Pacific Ocean, Astoria is rich in history, including fishing, canning and the Lewis and Clark Expedition.

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.