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

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

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

Less a museum than a bizarre fantasy world created by artists and engineers.

The mysterious white squirrels of this Illinois city are treated like sacred cows.

Known as the "Cross At The Crossroads," this massive metal cross is just short enough to avoid the FAA.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

These pretty kitties killed and ate as many as 135 railway workers.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.

"We Seceded Where Others Failed."

This bridge is haunted by the ghost of a distraught mother.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

South Carolina's last remaining slavery auction house is now a museum devoted to its own tragic history.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

This natural spring not only claims to heal the wounded but it has also been willed to God.

The world's largest fire hydrant is supposedly tornado-proof.

This psychedelic tromp l'oeil seems to be beckoning drivers to crash into a wall.

This titanic steel chain linking two buildings was installed without permission but instantly beloved.