During the 19th-century, this park was a vital trading fort.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

Everyone and everything one man ever loved and lost, now stare into the East for all eternity.

This unassuming riverbank is Missouri’s first designated site in the National Underground Railroad Network to Freedom.

Nestled in Onondaga State Park, over 100 canoes carefully stacked in a replica of the famous standing stones.

The site of an ancient Mississippian settlement that appears to have flourished during the 10th to 13th centuries.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

The oldest house in Galena, Illinois, now is a reminder of when this city was the world's lead mining capital.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

This cave holds a surprisingly colorful variety of geological oddities.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

In the Shawnee National Forest, amazing rock formations peer through the treeline.

A plaque on the side of a parking garage marks the burial place of a great Ottawa chief.

An obelisk commemorating Lincoln's role in connecting the coasts.

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

This monument remembers one of the manliest men of the frontier who fought a grizzly before dragging himself 200 miles to safety.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

An entire city block built completely out of petrified wood.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

The world's largest Holstein cow.

A winged-helmed, sword-brandishing tribute to German Americans.

A town honors its legacy of traditional American Indian pipe carving with one gigantic pipe.

The world's largest man-made underground caverns offer unparalleled underwater wonders.