A turn-of-the-century architectural marvel built on healing mineral springs and salt licks.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

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

A flat slab of stone perched hundreds of feet above the Gasconade River in the northern Ozark mountains.

A geological oddity formed by two rivers carving out a mass of limestone on both sides.

This majestic tree has survived 400 years of storms, droughts, and floods, and is a beloved natural landmark in Missouri.

The modest, restored home of the legendary ragtime musician John William "Blind" Boone.

The only pig museum in the U.S. holds one of the world's largest collections of pig items.

Two Ming Dynasty lion statues guard the entrance to the journalism school.

Like Stonehenge, but with boats and oodles more charm.

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

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

An enormous goose sits atop this nest-shaped home.

The oldest operating Mississippi River–style steamboat still navigates the Ohio River.

Origin of the blue-skinned Fugates of eastern Kentucky.

Unique tower has outlasted a takeover of the company.

A 70,000-square-foot institution dedicated to a very literal, creationist perspective on the Book of Genesis.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

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

A beautiful and abandoned New York subway station from 1904, complete with chandelier.