Palenque, nestled in the lush jungles of Chiapas, Mexico, offers an enthralling glimpse into the grandeur of the ancient Maya civilization. The city is renowned for its well-preserved ruins, which include the majestic Temple of the Inscriptions, where the tomb of the ruler Pakal the Great was discovered in 1952.

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.

Doubtful Fjord (Doubtful Sound) is a large fjord in southwestern New Zealand, in the same region as the smaller but better known Milford Sound. It is home to an unusually large population of bottlenose dolphins, as well as a variety of birds, fur seals, penguins, and often even humpback whales.

Aspen, Colorado, is a world-renowned destination that marries alpine beauty with cultural sophistication. Nestled in the heart of the Rocky Mountains, Aspen's pristine slopes have drawn skiers and snowboarders from around the globe for decades. Home to four distinct ski areas, the city offers a range of terrains for all skill levels, from beginners to expert powder hounds.

This beautiful port city and capital of the Nagasaki Prefecture is located on the island of Kyushu.