After miraculously surviving a giant flood, the 19th-century nut tree and its offspring are protected with their own tiny park.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

A sculpture of a giant man escaping from the depths of the Earth.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

An abandoned church gets a second life as a massive beer hall and event space.

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

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.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

The farm toy capital of the world hosts a museum filled with toy tractors dating back to the late 1800s.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

The “American Gothic" artist's largest works hang in an Iowa State University library.

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

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

An entire city block built completely out of petrified wood.

This sculpture gallery is home to magnificent beasts made of scrap metal and found objects.

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

Millions of dollars worth of sculpture decorate this Iowa city center.

A late sculptor's last project was to turn this abandoned cement factory into a castle-themed amusement park.

This mosaic-covered bar is brimming with curated curios.

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

A futuristic climate change study is nestled deep within this public land.