This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

The world's longest wildlife overpass provides Hilversum's critters with a safe alternative to trying their luck on the roadway.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

A monument hidden in the woods built in 1938 as a getaway for a Dutch museum curator.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

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

The world's most important buildings shrunk to a tiny size.

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

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

The "dragon babies" of southeastern Europe.

This one-time health resort was used by aristocrats around the world.

This Croatian fairytale castle is slowly falling apart thanks to years of neglect.

A whimsical bridge adorned with decorative dragons.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

A beautifully eclectic mix of architectural styles.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Lombardy poplars planted to imitate the size and shape of the Cathedral of Notre-Dame de Reims.

A grassy pyramid named after a French battle.