The oldest experimental corn field in America is still creating better ways to grow crops.

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

A hot dog stand where the heads are just as hot as the dogs.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

The palatial McDonald's that inspired Wesley Willis.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

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

This historic hotel invented the chocolate brownie.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

This is not your typical jungle gym.

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

The Magic House provides a beautiful and creative environment for curious youngsters to get their knowledge on.

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

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

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

One of few surviving standpipe water towers in the U.S.

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

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

Now nearly abandoned, Kaskaskia was once the capital of Illinois and one of the most important towns on the upper Mississippi.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.