Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

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

One of the last remaining French Colonial style churches, this centuries-old building was constructed using upright logs and no nails.

Man-made geyser that rises to the exact height of the Gateway Arch.

A floating museum that was sunk by a flood and left to rot in the tides.

A kitschy, creepy St. Louis mainstay.

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

The owners of this Victorian-era estate say it’s still visited by the spirits of long-gone residents.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

Giant works of art interspersed throughout meadows and woodlands offer a new discovery at every turn.

A frog crossed this road, but whether it made it to the other side remains a mystery.

Exploring the past, present, and future of blues music.

Odd castle-like structures for collecting water sticking out of the Mississippi River.

The eccentric and colorful pavilions of Tower Grove park are a beloved and overlooked symbol. 

Hundreds of graffiti artists have decorated this flood-wall on the west bank of the Mississippi River.

The oldest soda fountain in St. Louis has been serving up treats for more than a century.

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

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

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

One man's unrequited love stands in a glass box forever.

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

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