A real flying saucer, contracted by the U.S. Air Force.

A miniature world of concrete and stone in Springfield, Ohio.

A castle built by an eccentric medieval enthusiast in rural Ohio.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

Former self-sufficient mental institution now a planned community.

This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.

The oldest continuously inhabited street in America.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

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

Hundreds of protractors affixed to surfaces all over the city.

The permanent home of Elektro, the celebrity automaton of the 1939 World's Fair.

The final resting place of the Hollywood star who came to a tragic end.

The only freestanding table rock formation east of the Mississippi.

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

Arlington Cemetery exhibit dedicated to death and grieving.

World's largest herd of white deer populate a former U.S. Army depot.

Wisconsin's most celebrated export gets the royal treatment on I-94.

You were once able to challenge a chicken to tic-tac-toe at this park, which is now converted into the Aikman Wildlife Adventure.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

A suspended garden, now gone, once hung in the middle of this abandoned church.