Seven miles outside of historic Athens, the Greek coastal city of Piraeus lies upon the sparkling waters of the Aegean Sea and is the largest passenger port in Europe, servicing nearly 20 million passengers per year.

Serengeti, Tanzania, is a jewel of the African continent, renowned for its spectacular wildlife and breathtaking landscapes. This iconic destination is synonymous with the Great Migration, one of nature’s most awe-inspiring events. Each year, millions of wildebeest, zebras, and gazelles traverse the Serengeti’s vast plains in search of fresh grazing grounds, creating a dramatic and unforgettable spectacle.

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.

In the heart of Oman lies Nizwa, a city once considered the country’s capital and a hub of learning and trade. Its iconic round fort, built in the 17th century, remains one of Oman’s most visited landmarks.

Bulgaria is a republic in southeastern Europe. The capital and largest city is Sofiya. Bulgarian culture has been influenced successively by Byzantine, Greek, Russian, and Western cultures.