Serbia is a country where centuries-old monasteries sit just a short drive from lively cities, and where the past is never far from daily life. In Belgrade, the capital, Kalemegdan Fortress offers panoramic views where the Danube meets the Sava River. This fortress has witnessed more than 100 battles and been rebuilt many times over two millennia. Within its walls are Roman ruins, an open-air military museum, and quiet park paths perfect for wandering between centuries of layered history.

Cambridge, Massachusetts, sits across the Charles River from Boston and is known for its universities, historic neighborhoods, research institutions, and distinctive network of public squares. Harvard University and the Massachusetts Institute of Technology give the city an international academic profile, while areas such as Harvard Square, Central Square, Kendall Square, and Inman Square each have their own mix of shops, restaurants, cultural venues, and businesses.

Whether exploring volcanic trails or relaxing in seaside hot springs, Hachijo Jima provides an unforgettable island experience that feels worlds away from Japan’s major cities.

The Marshall Islands, a remote chain of atolls and islands in the central Pacific, invites travelers into a world where tradition, ocean life, and recent history all leave a lasting impression. Spread across nearly a million square miles of ocean, this independent nation offers rare access to some of the world’s most pristine marine environments.

Kruger National Park, located in northeastern South Africa, is one of the world’s premier wildlife reserves and a cornerstone of African conservation. Established in 1898, it spans nearly 20,000 square kilometers, making it larger than many countries.