The largest earthwork effigy in the world.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

The Kalamazoo factory has 100 years of instrument-making, and one big wartime secret.

The evolution of recreational vehicles and motorhomes is on display in the “RV capital of the world."

A small town museum celebrates the history of the Ohio county that produced Annie Oakley and other famous figures.

This experiment in the lifespan of seeds will take a century before it is complete.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

What was once the largest NFL stadium.

The unusual medical inventions of the man who gave the world Corn Flakes.

Largest magic museum in the United States with more than half a million pieces of memorabilia.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

A painted-over wall in Detroit originally built to segregate a black community from an adjacent white development.

Where the Model T was made and the assembly line was invented.

A gas station has taken the place of the home of the 19th American President.

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

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

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

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

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

The final resting place of the most famous sharpshooter.

In this relatively flat state the highest point is an honored place.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.

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

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