The walls of these four caverns are filled with art that dates back to the earliest human presence in Europe.

An out-of-place grove of sequoias thrives in northern Spain.

See replicas of Europe's most famous cave paintings and even some of the animals that feature in the art.

A magnificent place to see authentic paleolithic cave paintings that are an astounding 33,000 years old.

These primitive rock paintings include a very beloved depiction of a woolly mammoth.

These 7,000-year-old cave paintings depict life in Neolithic Spain.

One man's journey to return a stone to its point of origin after 200,000 years.

This extraordinary model train layout covers over 1,700 square feet, with multiple trains running simultaneously.

Offal and flawless onion soup are on the menu at this restaurant that once catered to the workers of Les Halles.

Visit a museum dedicated to the “the king of cheeses.”

Grab a life-changing ham sandwich at this former horse butchershop.

Five restored historic road bridges in a park along the Kalamazoo River.

Marvel at the opulent Art Nouveau interior while dining on dirt-cheap French classics.

For more than a century, Parisians have come for affordable dishes in a grand converted train station.

In 1977, an eccentric book lover formed a micronation for book lovers.

This set of Berber granary caves is now an interpretation center for the cave window structures in the Clarino valley.

After witnessing the rise and fall of three empires, this ancient city was finally destroyed by a series of earthquakes.

Over a millennium ago, this site on the shores of Lake Titicaca was home to a city of more than 10,000 people.

This redwood is a historic landmark, a town’s namesake, and the dancing sideline symbol of Stanford University.

One of the best places to dig—some say on the planet—for six different types of chalcedony.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above the Arctic Circle.

The longest timber-piled jetty in the world has an underwater observatory.

The oldest skyscraper of Europe now stands dwarfed by the surrounding structures.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.