This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

This modern French ossuary contains the jumbled bones of 130,000 WWI soldiers.

Historic medieval fortified city in southwest France.

One of the greatest maze designer’s greatest mazes.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

A 168-foot tower, part of the abandoned Chester Leadworks facility.

Western Europe's only representation of a Roman goddess still in its original location sits in an unassuming park.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

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.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

Longest fortress system anywhere in Europe.

A musical instrument played by the sea.

This famous writer's tombstone is a literary pilgrimage site that was publicly defiled by a rival.

One of the longest wooden benches in the world snakes around Geneva's Treille Promenade.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

Two stone columns flank the grand Venice square, but there were supposed to be three.

100 year tradition of fist fights, marked by marble footsteps.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

Go inside to really appreciate this 500-year-old technological masterpiece.