This museum is rotten with a century of wax medical deformities.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Tucked behind the Institute of Neurological Science down a decrepit street resides the largest display of human brains in Latin America.

Weird wax anatomical models reside here, as do other anatomical specimens.

Wax models of disease and deformity are on display at this German medical museum.

A collection of wax anatomy by the great sculptor Clemente Susini.

This former insane asylum now holds a pathological anatomy museum.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

Legendary site where an evil bishop was devoured by rodents.

Tiny castle in the middle of the Rhine made you pay to pass.

A surreal museum of extraordinary industrial objects.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

18th century anatomical amphitheater of the Royal College of Surgery of Barcelona.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

Nicknamed the "Museum of Horrors," this French anatomical collection has been fascinating visitors for over a century.

A museum devoted to bringing to light forgotten or neglected histories through exhibitions, education and public programming.

A cemetery housing wild west legends in South Dakota.

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

The music is over at the Ballhaus Riviera Ballroom, but the ballroom remains in haunting disrepair.

An eerie, derelict amusement park in Berlin.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.