An eerie, derelict amusement park in Berlin.

These brass bunnies honor the rabbits that dominated the no-man's-land around the Berlin Wall.

1513 Turkish world map, full of European state secrets and snarky commentary.

A meow-velous tribute to a beloved street cat, made famous on the internet.

The ornate miniature mansions were built for Istanbul's feathered residents.

Have tea in a cemetery with a dazzling view of Istanbul.

This crucial gathering spot along the "hippie trail" still displays old notes between traveling beatniks and backpackers.

After sitting unused for decades, this abandoned communist infrastructure became a wildlife utopia.

A forgotten graveyard lost in the tangles of an overgrown garden.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

The home where the famous astrologer wrote some of his most telling prophecies.

The Nobel-Prize-winning author of The Stranger is buried beneath a simple gravestone in a sleepy French village.

An abandoned village that resides along the mountains of the Aosta Valley.

The castle was reconstructed to fit Kaiser Wilhelm II's romanticized vision of the Middle Ages.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

This artistic fountain display pays homage to this area's theatrical history.

Since ancient times these picturesque springs have been providing bathers with healing waters.

For centuries no one knew there were hundreds of bones and precious artwork hidden beneath this Swiss church.

The castle where the Marquis de Sade lived out his darkest fantasies.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Its vast collection of wondrous gadgets details the fascinating history of information technology.

This symbol of the French Revolution still stands where it was first planted during the 18th-century.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.