Scary metal statues adorn some of the signature buildings of Burlington, Vermont.

A colossal watermelon slice celebrating Muscatine’s sweet agricultural heritage.

A physical reminder of Earth's ancient past, this rock results from the photosynthetic processes of some of the oldest forms of life.

See prehistoric footprints, plus two complete mastodon skeletons.

Inside houses a vast collection of military aircraft and missiles spanning the ages.

You can walk through the first Boeing Air Force One, which famously carried JFK's casket from Dallas back to D.C.

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

The only surviving prototype for Buckminster Fuller's house of the future.

A comprehensive archive of Hallmark Holiday ornaments.

One of the few working locomotive roundhouses in the United States.

Little did a museum know, they possessed the last-known lunch wagon in existence.

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

This shallow cave got its name from copious amount of human bones found inside.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

With a 90-foot wingspan, the world’s largest loon sculpture stands outside Allianz Field.

A tribute to Charles M. Schulz, who created the iconic cartoon that features Charlie Brown, Snoopy, and more.

Hidden in the grounds of the Fort Dodge Museum is a "real" and terrifying petrified giant.

A museum and gift shop in a small Illinois town commemorates the work of E.C. Segar and the local figures on whom he based his characters.

Romance fans worldwide make the pilgrimage to this group of historic covered bridges in rural Iowa.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

Built for a motel, this cartoon dino is now a symbol of the area's paleontological heritage.

The world's largest mineral hot springs is home to a herd of bison, a free public bath house, beautiful mineral formations, and a terrifying swinging bridge.