Copper River, Alaska's fourth largest river travels from the dry interior climate to the temperate rainforest along Prince William Sound.

Portugal offers a layered experience shaped by maritime history, deep-rooted traditions, and a coastline that stretches for nearly 1,800 kilometers. In Lisbon, the streets of Alfama wind uphill toward São Jorge Castle, where views of red-tiled rooftops and the Tagus River reveal how the city was rebuilt after the 1755 earthquake. Trams still clatter through narrow streets, and fado music, often performed in candlelit taverns, tells stories of longing and the sea.

York, England, is a city where over 2,000 years of history comes to life. Originally founded by the Romans in 71 AD as Eboracum, York has witnessed the rise and fall of empires, from the Vikings to the Normans. Today, the city retains its medieval charm, with its historic York Minster, one of the largest Gothic cathedrals in Northern Europe, standing proudly as its centerpiece.

Plovdiv, one of the oldest continuously inhabited cities in Europe, carries over 8,000 years of history layered into its streets. The Roman Theater, still in use today, was discovered by accident in the 1970s and now hosts operas and concerts overlooking the Rhodope Mountains. Nearby, visitors can walk the remains of a Roman stadium buried beneath the main pedestrian street, where modern shops and cafés stand above ancient foundations.

Sapa sits high in Vietnam’s northwest mountains, shaped by French colonial planning and long-standing settlement by Hmong, Dao, and other ethnic communities.