The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A monument to the art of slicing people open.

A giant bronze coil of feces is both a tribute to doggie defecation and a reminder to pick it up.

This shop for all your super spy needs hides an educational secret.

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

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

A bypass decorated with large wooden troll carvings.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

A bizarre house filled with an astounding array of collections.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

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

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

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

Oversized statues are just the tip of this nostalgic Americana roadside attraction.

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

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

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

An avant garde art museum at the University of Chicago.

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

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

A beloved, quirky little fountain featuring a large frog spitting water at a naked boy.

This Italianate Villa-style castle is pretty to look at, just keep off the private property.

A wild west cemetery in Tombstone, Arizona, provides a window into the Old West.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.