A hidden network of subterranean passageways lies tangled beneath Indianapolis' bustling City Market.

The memorial to the victims of the Jonestown Massacre carries the names of 918 lost, including one name people wish wasn't there.

The location of the last stand of Charles Manson's doomsday cult.

A picture-perfect town, perfect for blowing up.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

This abandoned-looking amusement park is frighteningly open for business.

Modeled after the labyrinth in Chartres Cathedral, this small-town Indiana memorial labyrinth sits half a world away.

Pitié-Salpêtrière was the dumping grounds for women who received the dreaded diagnosis of "hysterical."

A hyper-luxurious, 12,000- square foot home might be buried beneath Queens, still waiting to protect you from nuclear missiles.

This attraction was abandoned after the Chernobyl disaster.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

This house was largely built out of hundreds of thousands of discarded glass embalming fluid bottles.

A wunderkammer hidden on the top floor of the Hartford statehouse.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

New Orleans' famous cemetery, located on the site of a former race track.

The first declared National Monument in the United States.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

An old-timey wax exhibition campily depicting New Orleans legends and scandals.

The final resting place of New Orleans' most famous voodoo priestess.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.