Potosí rises on the Altiplano of southern Bolivia and for centuries it was one of the richest cities in the world because of what lies just beyond its streets. At the foot of Cerro Rico (“Rich Mountain”), silver was discovered in the mid-1500s, and within a few decades the city became a center of mining and wealth that shaped global trade and economies.

Located on the southern coast of Norway, Kristiansand is a charming port city and a favorite summer destination for locals and tourists alike. Highlights of this coastal gem include the Christiansholm Fortress, the Kristiansand Zoo, the Kristiansand Cathedral, Gimle Gård, and the Fiskebrygga wharf.

The Lemaire Channel is a spectacular sight with enormous sheer cliffs falling straight into the sea. It's a narrow channel flanked by the Antarctic Peninsula on one side and Booth Island on the other. So photogenic is the channel that it's nicknamed 'Kodak Gap', and it's only once you're well within it that a way through is visible.

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.

Homer, Alaska, sits at the end of the Kenai Peninsula and is often called the “end of the road,” where dramatic landscapes meet a vibrant small-town spirit. Overlooking Kachemak Bay, the town is framed by snowcapped mountains, glaciers, and a striking spit of land that juts four miles into the sea.