This massive library holds what was once the largest book collection in the world.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

Bullet holes in the church wall are a reminder of the violence that followed the assassination of a high-ranking Nazi officer.

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

This spooky statue sits outside a famous Prague theater.

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

The first museum in the world devoted to sexual gadgetry.

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

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

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.

An unusual assortment of art, furniture, and other curiosities.

Explore the History & Technology of Electronic Communication

A Kyiv-based repository for all manners of discarded curiosities.

One of the world’s best microminiaturist, Nicolaï Siadristy displays his lifetime of tiny creations in this museum.

The medieval prince founded the first library in Ukraine at Saint Sophia's Cathedral where he was interred.

This Ukraine alleyway has become its own little island of forgotten things.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

The deepest metro station in the world.

Ukraine's oldest operating pharmacy now offers guests a fascinating walk through apothecary history.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

A subterranean Holocaust refuge within one of the world's longest cave systems.

This derelict superstructure was a very important warning system for the Soviet military.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."