This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

Step into a pastel time capsule where candy is truly dandy.

A rare view of a preserved Victorian science museum.

Where America's first doomsday cult awaited the end of the world.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

World's first "penitentiary," meant to be humane, drove men insane.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

Under a church hides a forgotten 13th-century ossuary containing the remains of around 2,500 people.

Legend says these stone structures are where the doomed citizens of a vanished village sent themselves to die.

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

The largest catacomb system in the world.

Limestone caves in the Cambodian countryside, once the site of genocide, now a place of peaceful beauty.

The Voodoo Superstore of the world.

This museum houses an imposing skeleton army comprised of creatures great and small.

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

Structure built from the skulls of vanquished foes.