What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This historic hotel invented the chocolate brownie.

A lush green oasis in the middle of Chicago.

A Bibliophile's Dream.

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

One of just a few cities in the world to base their center of government on an island. Others: Paris and Osaka.

The headquarters of the prestigious World Food Prize celebrates the heroes in the fight against hunger, has no cafeteria.

This massive railroad spike celebrates the 1939 premiere of the movie “Union Pacific.”

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

Remnants of a quarry company town still stand on the banks of the Wapsipinicon River.

The magazine keeps a perfectly groomed display garden for its photo shoots.

This long unused shot tower on the Mississippi remains a point of pride for a small city in Iowa.

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

This simple home was the beginning of a long journey for the iconic Western film star.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

This remote island in Iowa was abandoned after being devastated by flood.

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

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

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

A single artist is behind these large-scale models made of hundreds of thousands of two-inch wooden matchsticks.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

This zombie-themed restaurant stands out in the heart of corn country.

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

The sign to a demolished amusement park now stands in front of a local library.