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

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

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

The hidden lair of an alchemist rediscovered in a 2002 flood.

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

Macabre astrological automaton clock dating to the late 1400s.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

Monument to a suicide protesting the Soviet invasion.

A mocking tribute to the past and modern leadership of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A neo-Gothic mansion now houses a wunderkammer of analog tech that hits on all the senses.

This Austrian museum celebrates the work of famous forgers and their inimitable imitations.

The house that took a plunge into the facade of a museum.

The final resting place for the remains of 143 Habsburg royalty.

Beautiful antiques and obscure engineering artifacts trace the evolution of phones from rare luxuries to ubiquitous.

A walkable map of the world, made from soil and stone by one man.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

A massive wintry wall of snow up to 66 feet tall flanks a highway through Japan's mountains.

Moss and stone turn this waterfall into an otherworldly liquid veil.

This highest bridge in the world spans such a great chasm that it had to be established using rockets.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.