The world's only three-story rotary jail is now a museum to a bizarre trend in prison design.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

The watery grave of an impractical idea.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

This picturesque cliffside beacon no longer calls to sailors but shines once a year in honor of a famous shipwreck.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

Elvis's own personal tropical hideaway.

Just like the real 36th president of the United States, animatronic LBJ amuses visitors with jokes and stories.

This zombie-themed restaurant stands out in the heart of corn country.

This historic hotel on Bathhouse Row in Hot Springs National Park has a storied history of gangsters and baseball greats.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

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

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Official museum, hall of fame, and repository of the Texas Rangers.

A historic Civil War estate-turned-museum looks back on the Confederate States of America.

This two-room shotgun shack in Tupelo is the birthplace of a King.

A taste of Middle Earth, in the middle of the Bayou City.

At the "Garage Mahal" in Houston, car culture is about more than just driving.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A museum chronicling pioneer life constructed over Interstate 80.