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.

Set in the heart of one of the world's most beautiful bays, Villefranche-sur-Mer sits on the steps of a natural amphitheater - the terraced hills of the Riviera - gazing out over the sea. The plentiful sunshine of the Côte d'Azur, reflected in the enclosed bay, has given Villefranche-sur-Mer a warmth and climate all of its own and its famous rich, exotic vegetation.

If you find yourself in Rotterdam, there's a strong chance you've arrived by water. This popular port city (the second largest in the Netherlands) has gone through an architectural renaissance since World War II, with daring, innovative structures dotting the city (cube houses!) and defining its skyline. Café culture is on the rise here, so grab yourself a table and a cup.

Mongolia, a landlocked nation between Russia and China, is defined by vast steppes, dramatic mountain ranges, and the sweeping expanse of the Gobi Desert. Known for its nomadic traditions, the country preserves a way of life that has endured for centuries.

Nuremberg is Bavaria’s second-largest city and for centuries was the undeclared capital of the Holy Roman Empire. There is plenty to do and see, starting with picturesque charm of the Old Town, situated at the foot of the Kaiserburg.