This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Rippling sand dunes frozen in the Arizona rock.

World's largest collection of serial killer artwork and other macabre exhibits.

An artsy hidden staircase leads to breathtaking views of San Francisco.

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

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A huge musical instrument played by the ocean.

This shallow cave got its name from copious amount of human bones found inside.

What was once the largest NFL stadium.

Trade in that pesky human soul for cold-hard circuits.

An ornate Detroit church, left empty and ravaged by time.

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

This lovely public park has an intriguing past and unique wooden bridges made of concrete.

One man’s vision of living among dinosaurs credits Jesus Christ as the engine of biological evolution.

House built with over 60,000 glass bottles.

Enormous small-business mecca in the Midwest, serving dozens of artists.

This empty Detroit high school was too expensive to maintain or destroy.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

A popular place to pick up prehistoric coral fossils from the time when Michigan was an ocean.

The writing studio of an American adventure author, built in the style of a medieval castle.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

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