Amsterdam's Red Light District leaves little to the imagination.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

Take a leisurely walk through the park to find the seven giant troll sculptures hidden throughout the park.

This ghost town in Belgium will lose its street art when it ceases to exist.

The anatomical-pathological collection of a man who changed surgery.

Only museum in the world devoted to bookbinding and book arts holds a permanent collection representing five centuries.

The Belgian royal family's private depot now stands abandoned and forgotten alongside the tracks.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

The rusted creatures wait to be discovered in Prague's botanical garden.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

A crucified and bearded female saint.

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

A saintly relic hidden in a Prague church basement.

Microscopic scenes; some call it novelty, some call it art.

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

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

This artificial cave looks like something out of a fairytale.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.