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.

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

To find the "unicorns of the deep" you've got to go downstairs.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A beautiful oddities shop crammed with strange and morbid curiosities.

An abandoned town is hidden in Great Smoky Mountains National Park.

Locals place their offerings on this nightmarish gnarled tree so the witches won't summon another storm.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

The grave of the iconic Kentucky Fried Chicken mascot features a bust of the man behind the goatee.

The largest cemetery in Louisville is the final resting place of Col. Sanders and Muhammad Ali.

One of the greatest boxers and humanitarians to ever live chose his hometown as his final resting place.

A life-sized memorial to Harry L. Collins, the official corporate magician of Frito-Lay.

The awe-inspiring ship from the golden era of cruising has an incomparable history and a reputation as one of the world’s most haunted places.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Cemetery featuring rare glass-fronted columbarium.

This historic house museum that celebrates one of the world's most influential social reformers is also one of the most haunted locations in Chicago.

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

An overlooked tribute to one of the most important peace deals in American history.

Huge abstract sculptures of the Puerto Rican Flag.

Once called the "Polish Gold Coast" it is an icon of the neighborhood that bears its same name.

Where Cusack's record store from the film "High Fidelity" was located.

A beloved Chicago music venue offering cold beer and lots of “Friendly."