This is not your typical jungle gym.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

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

A creepy sculpture of a decapitated head invites viewers to see St. Louis through its empty eyes.

One of the world's earliest skyscrapers.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

The famous Beatle secretly visited this Illinois town several times to visit his sister.

The grandson of a Kiowa chief created what has become the iconic symbol of a city on the Plains.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

Down the road from where the Wright brothers lifted off is another flight tribute practically hidden from sight in the woods.

So many migrating birds roost on the bridge, it has a special summer speed limit.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

One of corporate America's best-kept secrets is also one of the most publicly displayed.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

Georgia's highest point was given its strange name thanks to a simple translation error.

A museum and doll store featuring a surreal and super sanitized version of where babies come from.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

The highest point in North Carolina and the United States east of the Mississippi River, Mount Mitchell is named after argumentative explorer Elisha Mitchell.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.