This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

A road runs through the middle of this small Austrian chapel.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

This 19th century cyclorama acts like an analogue time machine to a different era.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

This overgrown mountain village has been abandoned for nearly a century.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

A cherry tree growing atop a mulberry tree.

The world's largest bamboo labyrinth is a living demonstration of the plant’s immense potential.

Windblown rock formations in an ancient Roman quarry.

A tree that defies gravity grows in an ancient ruin.

Gorgeous views of Italian mountains and valleys form the backdrop of this unique open-air theater.

A huge enchanting public park just outside the ancient walls of Rome.

Explore the quarry where the marble was sourced for Michaelangelo's David.

A spiritual sanctuary in a natural cave.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

This magical-looking island is notorious for the misfortunes suffered by its owners.

Two stone columns flank the grand Venice square, but there were supposed to be three.

142 ceramic steps become a mosaic once a year.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.