The history of the treatment of mental illness, illustrated in all its gory detail, and housed in an asylum.

In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

The World's Largest Bull.

An Iowa town celebrates its heritage with the tallest working Dutch windmill in North America.

Home with Gothic windows featured in a famous painting.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

A four story, football field-sized, nine-grotto creation made of shells, minerals, and rare stones.

A true roadside icon standing on the same plains that the herds once roamed.

One man's quest to save his town with a trail of record-breaking sculptures.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

An experimental, automotive replica of Stonehenge.

This erect, phallic geological spire wasn't always named so domestically.

A rainbow-colored house promotes LGBTQ rights across the street from the Westboro Baptist Church.

Metal sculpture folk art lining the Kansas Highway.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

When ecosystems collide in the arid Southwest.

These aggressively sustainable art homes look like something out of 1970's science fiction.

A multi-storied adobe complex has been inhabited for more than a thousand years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."