A gem in the small Missouri town where Winston Churchill coined the term "Iron Curtain" and effectively began the Cold War.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

This naturally-sourced hot spring is now home to a clothing-optional resort.

The largest self-built castle in the U.S., six decades in the making.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

The highest point in Oklahoma used to be a lawless outlaw's paradise.

A museum dedicated to man's boldest venture.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

Walk the whole Mississippi River!

A reclusive Memphis neighborhood is home to decades worth of misunderstood Masonic folk art.

This art deco masterpiece was once a miracle spring mecca but is now simply a government office building.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

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

Giant granite rocks standing end-to-end like a train of circus elephants.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Destroyed by flood waters, prison now serves as a training ground for armed forces.

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

This sacred space and gathering spot for the Wyandot Nation has been the surrounded by controversy and confusion.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

Community bookshelf of 25-foot-tall book spines.

This giant green head remembers one of America's jazz giants.

This otherworldly church spire reaches up toward the heavens.