The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This massive subterranean fissure is known as the "underground Grand Canyon."

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

A small square plaque marks a failed assassination attempt that could have changed history.

A serious museum dedicated to two German comedians.

Go surfing on this urban wave, "hacked" by local surfers.

This century-old cinema house has a marquee that has been hand painted by a single man for over 25 years.

The footprint of a frustrated devil in Munich's Cathedral.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

Among the ostentatious rococo ornamentation of this church, an image of death cuts the life-thread.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A stairway to heaven, or to nowhere at all.

A unique exhibit lets blind people experience famous works of art and architecture with their hands.

This embalmed man is one of the best preserved mummies from the Canary Islands.

The lengthy skeleton of one of the tallest Spaniards of all time is on display in Madrid.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

In the fictional world of Kcymaerxthaere, celestial wonders marked a portal to a powerful route of travel at this site in Madrid, Spain.

The earliest known map to show America, discovered by accident at a Paris bookshop.

Abandoned for decades, trains still pass through the now-restored remains of one of Madrid's first metro stations.