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

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.

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

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

Oversized statues are just the tip of this nostalgic Americana roadside attraction.

The carved remains of a 200-year-old oak tree memorialize the namesake of the iconic "Wizard of Oz" character.

The park that the Chicago Stockyards built.

While he no longer has an eatery to give him context, this off-brand Paul Bunyan still holds his giant hot dog with pride.

One of the largest carillons in the world, this giant instrument has 67 cast-iron bells played by a keyboard.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

The empty tomb that houses the memories of Roy Bertelli's revenge.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The world's largest covered wagon is piloted by a giant Lincoln lawyer.

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

Built in 1869, this now-retired structure looks more like a medieval fortress than a county lock-up.