Museum devoted to the artificial language of Esperanto.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

Legends surround an ancient tree trunk riddled with nails for good luck.

Huge standing stones mark a site of megalithic mystery.

A wunderkammer of mysterious objects and stories.

A small monument on the outskirts of Prague, where one of the bloodiest conflicts in the country's history was decided.

Dedicated to the works of the legendary special effects artist.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

This spooky statue sits outside a famous Prague theater.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

The bridge that cost Germany a World Heritage Site.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

A Hungarian pharmacy museum with a box full of mummy powder.

This tablet indicates where the tragic monarch returned to begin her tumultuous downfall.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

A visionary, futuristic sculpture in Los Angeles that never met its extraterrestrial potential.

This previously dilapidated alleyway has been transformed into one of Melbourne's finest hidden art locations.

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.