Art and armour fill every inch of this rich kid's Italian villa.

Contains some of the world's more disturbing wax anatomical models.

This Italian foot path winds through the mountains via 52 individual tunnels.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

Stroll through a wonderland of stupendous moss-covered trees.

An indigenous take on European design creates a stunning visual overload.

A tree bears footwear on the loneliest road in America.

A ruined hotel with an unlucky history and an eerie present.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

A popular tourist cave with a dark past.

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

Stalactites and stalagmites in a beautifully lit cave.

Terrifying derelict military hospital once housed a recuperating Hitler.

Super-heavy Nazi architectural experiment.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

This classic restaurant features a gorgeous mirror-clad room.

An eerie, derelict amusement park in Berlin.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Flamboyant architecture from the turn of 20th century.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

Museum about life, death, and cannibalism in the Stone Age.

A beautiful but toxic fountain of mercury.

This Funeral Hearse Museum represents the finest in cadaver transportation.

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.