A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

The final resting place for the famed creator and narrator of "The Twilight Zone."

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

This exhibit allows visitors to wander through the interior of a replica Ice Age glacial cave.

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

This abstract roadside poultry was saved from demolition by outraged drivers and pilots.

A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

This manor in the woods memorializes one of the greatest birders of a generation.

A collection of vintage liaison aircraft kept in flying condition and on display at an airfield in San Antonio.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.

Journey up the capitol building's cupola for an amazing view of Topeka.

An unassuming nature trail winds through dozens of tiny houses built for the wee people.

Take a ride on antique streetcars from across Canada.

305 homemade stone stairs wind their way up the Hamilton escarpment.

This mill on Lake Erie appears to shrink as a viewer approaches thanks to an optical illusion.

The "last holdout of the Confederacy” actually sat at the edge of the Canadian border.

The only building in Louisville (hopefully) that contains two ancient holy skeletons.

Collection of antique science instruments displayed in recreated 1870-1930 laboratories.

Soaring over the Niagara Whirlpool since 1916.

Toxic waste disaster that founded the Superfund program.

More than 350 million years ago, western New York was covered in a vast sea. Today, you can dig up the remains of the plants and animals that lived there.

A natural gas leak provides a flickering flame beneath a waterfall.