A whimsical village of unique treehouses resides in a Washington forest.

An amazing clockwork museum in the Val de Travers holds examples of various prestigious legacies horological history.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.

This secret Swiss fortress is disguised as a harmless pink house, complete with fake windows.

Museum dedicated to wax representations of disfiguring diseases.

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

150-year-old satirical tableaus made from stuffed frogs.

American soldiers discovered Europe's best one-liner at the end of World War II.

A spherical "micro-nation" in the heart of Vienna.

Artfully arranged bones of 5,800 Austrians.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Where beer lovers can literally immerse themselves in beer.

Annual technopop celebration of peace and love.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Located right outside of Vienna, visitors can take in expansive views of an ethereal forest.

This museum promotes informed contraception by documenting its often secret past.

Baroque celebration of the end of the Great Plague of Vienna.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

Dedicated to the unsung history of human waste.

One man's personal collection of KGB memorabilia is presented along with his strange viewpoint.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

A Jenga-style cylindrical tower of books that appears to go on forever.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.