A large stone map of Arkansas awaits visitors to its highest point.

This one-room schoolhouse in rural Arkansas dates to the 1920s, but looks like it could be the 1820s.

The granite monument is engraved with the image of the talking horse's head coming through a barn door.

European castle ruins in an American state park are actually the product of death and grief.

This former mining town was named the most toxic town in America.

An abandoned early-20th-century boomtown sits within the Calico Rock city limits.

In Edwin Hubble's hometown, a scale model of the groundbreaking telescope that was named in his honor.

This mill has survived a tumultuous past to still produce flour and cornmeal.

The show pony of cave systems, Fantastic Caverns manages to live up to its name.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

Twenty-year effort to raise a castle using tools and techniques from the 13th century is now abandoned in the Arkansas woods.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

The oldest house in Lindsborg, Kansas, includes some fascinating inscriptions.

Also known as the Cathedral of the Plains, this church holds the distinction of being one of the "8 Wonders of Kansas."

The oldest purpose-built cinema still in operation also houses a museum of movie memorabilia.

This bright yellow building is packed with sweet treats from all around the world, from chocolate-covered crickets to whoopie pies.

Ever wanted to can Spam?

See the motorcycles that launched the stuntman to fame and the gear that saved his life.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

One person's lost luggage is another person's treasure.

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

The hotel room where Janis Joplin tragically died has now become a makeshift shrine to the singer.