Ruins of a German Castle on top of a towering stone pillar.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

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

The highest point in Belgium is a staircase to nowhere.

Hiding the longest subterranean river known in the world.

It's home to the antenna that received the first images of Neil Armstrong walking on the moon.

Twelve sweet, nutty, life-sized statues are housed in this second-story shrine to almond paste.

Occult books, tarot, oddities.

Tiny artwork tucked within glass letterboxes form this hidden gem of an art gallery.

A beautiful 1920s tower filled with local hidden gems.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

The decommissioned submarine is now the symbol of a small, inland Australian town.

A simple tribute to the migrant workers who landed here before walking hundreds of miles to Victoria's gold mines.

For a century, the tallest building in Tasmania was a tower built to manufacture ammunition.

A modest park memorial pays tribute to one of the Titanic's most revered storylines.

A local landmark that has become a hub of graffiti and urban exploration.

These bronze sculptures sow whimsy by hamming it up on a pedestrian mall.

The gigantic preserved heart of a champion racehorse.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

A moving memorial to the fallen and missing from WWI trenches.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

A friendly monster lurks outside the State Library Victoria.

Children's author May Gibbs's beloved stories about the tiny, human-like "Gumnut Babies" are immortalized in bronze.