The mystery of the Putim Ossuary involves a tricorn hat.

These 17th-century mummies are no longer naturally preserved, but remain on display today.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Bohemian paradise covered in majestic forests.

Europe's second largest ossuary wasn't discovered until 2001.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Annual technopop celebration of peace and love.

An IT-specialist-turned-farmer reintroduces an Austrian food tradition while promoting snails as a sustainable "future food" option.

An ornate private entrance to the Vienna subway built specifically for the emperor.

The second-highest train station in Europe.

Though it may look like a businessman's lost luggage, this case suspended under a highway bridge is actually a contemporary art installation.

Created by a pair of artists, this former hotel was designed to provide a minimum of everything including comfort.

Artworks by loners, prisoners and the criminally insane.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

World's largest permanent maze made of 18,000 conifers.

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

Enormous, fluffy dogs frolic around this museum dedicated to a legendary Saint Bernard.

A national collection of Communist-era musical posters.

Communism's topsy-turvy effect on Poland has been brought to life in this wacky tourist trap.

Warsaw's fantastically preserved gasworks...almost.

A state-of-the-art medical facility from the Imperial era is now a derelict ruin.

Next to the well-known retaining weir "Hochablass" is the former raft port for the city of Augsburg.

Designed to resemble foreign architecture, this mosque-looking structure was used to pump water to a royal fountain.