One of the world's largest collections of pathological specimens.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

Famously misunderstood wonder of the ancient world

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

An ancient tree that was once the favorite of a young Swedish royal.

Hidden in plain sight, Sweden's official ordnance datum is now abandoned.

Frequent fliers welcome in this airplane hotel.

The first (but not only) upside-down house in Germany.

Enter the cabin of a life-sized Hindenburg replica.

Hamburgers are intensely proud of their tunnel beneath the river.

In this truly magical place, rent hasn't been raised since the year 1520.

This cheese shop also houses a museum devoted to Dutch dairy.

This sprawling Jewish cemetery is one of the largest in Europe.

The difficulty of getting a good night's sleep is an age-old affliction according to the one-of-a-kind Snoring Museum.

This giant, 83-year-old ship elevator is an engineering feat to behold.

Germany has its very own Centralia, whose spark remains attributed to "spontaneous combustion."

A spitting ode to a German serial killer.

Tiny castle in the middle of the Rhine made you pay to pass.

The name doubles as an appropriate adjective for this small ossuary.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.