Death Valley, California, is a land of extremes that captures the imagination with its striking desert landscapes and surreal beauty. Located in the Mojave Desert, it is the hottest, driest, and lowest national park in the United States. Visitors are drawn to its iconic features, such as the vast salt flats of Badwater Basin, which at 282 feet below sea level, mark the lowest point in North America.

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.

Sudan, located in northeastern Africa, is a country of diverse landscapes, from the vast Sahara Desert in the north to the fertile Nile Valley in the center. The Nile River, one of the world’s longest, runs through the country, shaping both its agriculture and history.

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.

In the walled city of Siena we stand firmly planted in the Middle Ages. Siena preserved its original character more markedly than any other city in Italy.