The highest point in Belgium is a staircase to nowhere.

This bike path was sunk below water level for maximum wonder.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

One of the deepest indoor swimming pools in the world.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

This abandoned Belgian fortress is purposefully being left to nature.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

Hiding the longest subterranean river known in the world.

Cozy basement bar sports an inventory of over 2,000 beers.

Petting this mysterious iron monkey supposedly brings good luck.

A 141-foot wave of crashing lumber guards the entrance to the Grand Place in Mons.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

One of Ireland's most infamous prisons for rebels including men, women and children.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

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

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.