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

A medical facility that has been kept frozen in time.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A reservoir of vintage pinball machines and arcade games for the nostalgic and thrill seeking.

A terrific purveyor of natural history objects and curios.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

Unlock the secrets of the conjuring arts.

The intriguing personal collection of a professional demon-chaser.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

A gigantic 10-foot tall stone man.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

A beautiful final resting place with some surprising residents.

An old dining hall now serves up ghost stories for lusty locals.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

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

The Fox Sisters, America's leading mediums in the mid-19th century, possessed a table they claimed helped them "communicate" with the dead.

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

A rare view of a preserved Victorian science museum.

Eighteen miniature death-scene dioramas.

Town full of spiritualists, some of whom are mediums, is still in full swing after 130 years.

Arlington Cemetery exhibit dedicated to death and grieving.