All that remains of a gigantic earth-moving machine.

A quirky collection of outsider art made from automobile parts.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

This California artist's front yard acts as a gallery for his unique, scrap metal animal sculptures.

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

A circle of giant painted vases in the former pottery capital of the United States.

The oldest remaining authentic Putt-Putt course that Donald Clayton created in Ohio.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

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.

The spectacular collection of one of the world's best woodcarvers.

A monument to a Native American leader who was known for never breaking a promise and met his end after signing a deal with white settlers.

Center filled with hands-on displays served as a tribute to several astronauts with connections to the state.

A fiberglass jungle, deep in the wilds of the Cleveland suburbs.

For decades, this waterfall remained hidden because of an artificial dam.

A museum dedicated to the dead and the tools used to usher them into the afterlife.

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

Annual Easter display made up of thousands of hand-painted eggs.

Constructed from the ruins of a former glass factory, this park incorporates the old with the new.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

The angel of death appears to weep black tears at this grave marker.