A saintly relic hidden in a Prague church basement.

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

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

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

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

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

The first museum in the world devoted to sexual gadgetry.

A random tree outside a Budapest hotel has become a DIY shrine to the late singer.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

A Hungarian pharmacy museum with a box full of mummy powder.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Once the home of a hermetic monk, this cave now houses a small church.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Baroque celebration of the end of the Great Plague of Vienna.

Monument to a suicide protesting the Soviet invasion.

Steadily reminding Czechia of its past.

A crucified and bearded female saint.

The plague quarantine island home to the alleged "Vampire of Venice."

Museum dedicated to the terror regimes of Hungary.

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

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.