According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Thousands of well-dressed mummies below a monastery.

Stalactites and stalagmites in a beautifully lit cave.

Renaissance villa and gardens complete with a tormented colossus.

The middle finger of modernity.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

An alchemist's "magic door" stands in the middle of a Roman park.

Architectureal fantasy quarter of Rome.

A 16th-century horror show built in a lovely Italian garden.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A rare example of a German cemetery with traditional grave markers dating back several generations.

A collection of artworks exclusively created by the mentally ill that was almost burned by Nazi culture police.

Berlin's oldest surviving academic architecture hosted decades of animal dissections.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

A beautiful old horse stable hosts one of the largest collections of domestic animal skeletons and taxidermy.

At this cemetery, artists are invited to design their own gravestones.

Seventeen members of the local royal family are interred in this Baroque church in northern Germany.

The Tübingen University anatomical collection hosts an example of an extremely rare medical phenomenon.

One of the world's oldest fossil exhibits is on display in a beautiful antique "naturalienkabinett."

A taxidermied stork with an arrow through its neck proved that birds migrate.