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

Buy a token from the liquor store and you can make this beast spew flames on command.

A 30-foot-tall goat tower in central Illinois is home to a herd of Swiss ungulates.

The world's largest collection of the world's largest objects is in one small Illinois town.

A century-old wooden walkway where artists and free spirits have built a funky, countercultural main street.

In the loving memory of a tragically deceased role-player this Illinois park is decked out with both dungeons and dragons.

The only dome home to be owned or occupied by dome inventor Buckminster Fuller.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The only Frank Lloyd Wright-designed structure in the architect's hometown.

A bypass decorated with large wooden troll carvings.

Homemade outdoor church and sculpture garden decorated with glass shards.

These curious caverns have been home to mushrooms, gangsters, and disco.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Hidden in magnificent rolling countryside, see what may be the largest modern stone circle in the world at Wisconsin's very own "Stonehenge”

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Dedicated to one of the darkest moments in Irish history.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Two thousand artifacts from around the world collected by one woman who loved to travel.

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

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

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

A striking sculpture built to honor the women of the Lakota and Dakota Nations.