A prehistoric geological oddity tucked behind Stockholm's natural history museum.

This statue and park honor the Swedish chemist Jacob Berzelius, one of the founders of modern chemistry.

Maybe the only restaurant in the world where your seat will be signed by a Nobel laureate.

Eat a Nobel banquet from any year in the basement of Stockholm's City Hall.

A forest of immensely tall and unusually straight oak trees planted nearly 200 years ago to build naval ships that never came to be.

From a distance, this structure looks like an ordinary office building but a closer inspection reveals a unique facade.

The site of Stockholm's last public execution.

This pair of unsuspecting buildings are in fact the very first modern skyscrapers in Europe.

This museum in a shuttered train station remembers the island's forgotten rail system.

For nearly 2,000 years this church has been waging war on local snakes by importing cats.

A crumbling ghost town with prime views of the dam that doomed it.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

One of the most historical literary characters continues to stroll his hometown.

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

A miniature model of the iconic Stockholm department store.

Climb a steep hill in 90 seconds on the second-oldest urban subway in the world.

A sixth-century Byzantine cistern hidden below a modern carpet store.

Over the centuries, this island paradise has done it all, from providing monks with ecclesiastical respite to sheltering an exiled Leon Trotsky.

This arch granting triumphal entrance into Antalya was designed to honor the emperor's visit.

The best-preserved ancient theater in the world.

On the side of a building, a depiction of the woman who became a local legend by tossing soup out her window.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

Celebrating the Swedish ship used in the first Arctic expedition to navigate through the Northeast Passage.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.