Large one-man sculpture park in Michigan.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

A giant concrete egg marks this Indiana town as the "Egg Basket of the Midwest."

This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

This stately clubhouse has showcased German-American culture for over a century.

Since 1947, this living history museum has been providing an immersive look at life in Plymouth Colony.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

The outcropping is graffitied with the name of the beloved musical Muppet television series.

Some of the Old West's most notorious outlaws frequented this mining town.

Buried beneath the New Mexico sands are believed to be millions of copies of Atari's E.T. video game.

The state bird of New Mexico, constructed entirely out of garbage.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Stairs often replace streets on the steep slopes of this old mining town.

A living snapshot of a different time in America is preserved and maintained by a community of volunteers.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

The Magical World of George Phar Legler.

Limestone caves with spectacular showcase chambers.

A stone pillar marking the location of the westernmost battle of the American Civil War only honors one side of the conflict.

Dedicated to one of the darkest moments in Irish history.

The schoolhouse where Jesse Merwin, the inspiration for the "The Legend of Sleepy Hollow" character, once taught.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

The ritual has been performed uninterrupted for nearly 700 years.