This abandoned Slovenian military barracks has become a punky-political art squat.

The "dragon babies" of southeastern Europe.

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

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

A Romanesque tower appears when water levels drop.

This lurid German fountain plots the sad course of marriage from dating to death.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

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

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

A mysterious plaque to the even more mysterious "Fr. Pat Noise," killed in "suspicious circumstances."

A guitar mounted on a wall in Temple Bar honors the Irish musician.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

Northern Ireland's Brobdingnagian stepping stones.

A mysterious Neolithic tomb is perched along the edge of a modern golf course.

This record shop and unofficial black metal museum is an ode to Oslo's heaviest musical export.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

This floating sculpture of ice is a poignant reminder of nature's power.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Admire endangered plants in a verdant garden that looks straight out of a Monet painting.

This semi-secret storybook hedge maze is also the oldest garden in the city.

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.