Festival of Perpetual Life and Rebirth.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

Feed it cash, get your very own gold bar.

A century-old prison in the heart of Vilnius is now a lively bar, dance club, and artist residency.

Over time, this castle grew to encompass the entire island.

This letter written by Queen Elizabeth II in 1986 won't be opened until 2085.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

A wunderkammer of mysterious objects and stories.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

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

A market built atop boats is one of the few floating holiday markets in Europe.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

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.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

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

The spectacular history of spectacles on display.

Whether hero or rogue, his silver bullet is said to have taken down the murderous "Beast of Gevaudan."

An architectural oddity of six stories, accessed by graceful ramps.

These quaint French houses dangle precariously over a precipice.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

This underwater cave in Madagascar is home to what is thought to be the country's largest fossil graveyard.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.