Opulent downtown movie theater now houses cars as an indoor parking garage.

Though its branches are painted bright colors by generations of locals, the tree is said to be a haunted portal to hell.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

Strange physical sensations and optical contradictions keep visitors coming back for more.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Abandoned concert venue legendary for its rock counterculture.

This elaborate estate contains a stunning marble aviary, a sunken conservatory, and a magnificent music room with a two-story pipe organ.

Indiana's oldest sternwheel paddleboat has been plying the placid waters of Webster Lake for 90 years.

Enjoy classic musicals with a home-cooked meal at this former staple of American social life.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

A theme park featuring a replica of Noah's Ark built to the measurements specified in the Bible.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

Prehistoric animals decorate this popular outdoor park.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The world's longest known cave system.

This former office building has been transformed into an immersive music venue and art space.

An unassuming 13-acre park is home to over 12,000 roses.

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

Rare recess caves fill this unbelievably beautiful Ohio park.