A crucified and bearded female saint.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

A psychological self-portrait in the form of a giant, segmented head.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

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

An existential riddle in the world's largest ancient castle.

Walk through Czech history in Prague's largest graveyard.

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

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

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

This doorless 20th-century elevator doesn't stop or slow down.

The first museum in the world devoted to sexual gadgetry.

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

Looming communist pillar with a Czech twist.

The last municipal pneumatic post system in the world was in operation for over 100 years, and may run again.

A controversial artwork draws attention to the dark history of Prague's "Suicide Bridge."

This artificial cave looks like something out of a fairytale.

An artsy hidden staircase leads to breathtaking views of San Francisco.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

Less a museum than a bizarre fantasy world created by artists and engineers.

An old-timey wax exhibition campily depicting New Orleans legends and scandals.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

The final resting place of New Orleans' most famous voodoo priestess.