The highway's southernmost spot is a beloved local attraction.

A Cold War site complete with rusty structures, hiking trails, and beautiful views.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

An overlooked tribute to one of the most important peace deals in American history.

This otherworldly church spire reaches up toward the heavens.

The 28,000-year-old specimen is remarkably intact.

This anonymous businessman sculpted in bronze became an enduring memorial after 9/11, and had been mistaken by rescue workers for a survivor in the rubble.

This memorial honors thousands of enslaved Africans and their descendants who died in colonial New York.

A historic neighborhood church is reborn as a psychedelic arts collective.

A secret greenspace hides atop a Capitol parking garage.

Also known as the Founding Church of Scientology.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

This unassuming passageway played a key role in one of the most important events in U.S. history.

A memorial to the 1913 tragedy that helped protect the workers of the future.

A gazebo that inspired the fifth episode of the "Twilight Zone" still stands in the creator's hometown

This labyrinthine resting place of Black American leaders has been reclaimed by nature.

A giant cat slowly prowls the parking lot of Zebulon's car dealerships.

An eerily abandoned stone tower is all that remains of a demolished dam on Cape Fear River.

Art Deco urban decay at this historical building.

A giant cement churn carries the legacy of American resilience, unity, and greed.

A water pumping station disguised as a residential home to assuage concerned neighbors now tricks most passersby.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.