A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

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

Museum dedicated to wax representations of disfiguring diseases.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Sail in for a ’dam good slice.

Peek through a transparent pyramid and drink in the mountain made of books.

A floating cat sanctuary on an Amsterdam canal.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

A unique work of automotive art calls this shopping center home.

Cat art as far as the eye can see.

The world's largest collection of ships in bottles.

This miniature take on the Kremlin is one Dutch man's retirement project.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

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

This lovely little bridge hidden in a Switzerland gorge is essentially a fairytale.

Europe's largest dinosaur museum was founded by a passionate autodidact.

This unique preservation is one of the only taxidermies in the world made with real whale skin.

Three sinkholes filled with warm, crystal-clear water reached by a horse-driven cart on an old train track through the jungle.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.