An ancient necropolis of magnificent tombs.

The Stonehenge of Wales is one of the grandest neolithic dolmens still in existence.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

Three bridges straddle a stream, one stacked upon the other.

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

Follow the original medieval paths that wind through this intriguing section of the city.

A museum wholly devoted to juvenescence.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Eighty million natural history specimens call this gargantuan museum home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

Visit the home of Sweden's beloved fictional character, Pippi Longstocking.

Largest island in the Baltic Sea experiences such idyllic weather that roses bloom in the middle of December.

Ancient burial grounds of the wealthy.

The second oldest anatomical theater is housed in a museum of curiosities.

Stockholm's deepest subway station is also a stunning ecological wonder.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

It houses the remains of a 17th-century version of the Titanic.

Every summer, an open-air swimming pool appears at the base of a Finnish city's beloved winter attraction.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

These Finnish rapids have been attracting tourists for over a hundred years and are now released with the push of a button.

The etchings on this narrow channel between two islands bear witness to maritime travelers who have passed through since the Middle Ages.