The oldest stone house in Paris was built by its most famous alchemist.

Installed at a chaotic intersection, this gave London traffic cops a place to hang their heavy woolen coats.

This punny mirror of another Wisconsin attraction is exactly what it sounds like.

A mysterious monument where a woman who records say never existed was burnt alive for being a witch.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

A small part of Russia that does not touch any other part of Russia.

At the center of an island in the middle of the Indian Ocean is a deep chasm ringed by tall waterfalls.

A tomb with a window to ensure the interred wasn't buried alive.

A tiny but mighty little pumper sits in the middle of the street, waiting for the next big oil strike.

There’s a special club house at the top for the bell ringers.

The Arctic Circle runs through this isolated spot north of Iceland.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

A stone in Wolin, Poland, marks the possible location of a legendary Viking fortress.

A Spanish forest is filled with mysterious stone carvings.

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

The remains of a deserted 1800s farming community can be found in Little River State Park.

Its town washed away centuries ago, this lonely tower by the sea tells the tale of a mermaid and a curse.

A small Japanese village claims to be the final resting place of the son of God (and God's other son's ear).

This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

A little church on a tiny island looks like something from a fairy tale.

A broken man's homemade, seaworthy ship rests in the middle of the Canadian prairie.

This lake-bound geographical marker sits at the point where three European countries intersect.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.