It would take 35 firetrucks to fill this enormous glacial pothole.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

This secluded walking trail is a hidden gem of a Pittsburgh park.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

America's first serial killer rests in anonymity.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

The oldest farmer's market in America is so ancient it was approved by the King of England.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

The abandoned coal loading dock is a canvas for unsanctioned art.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

Admire an ever-changing landscape of stone sculptures.

A 132-year-old telescope continues to keep watch over the night skies above Providence.

This plaque honors the unsung Black songstress once known as the “greatest singer of her race.”

A tribute to Rhode Island's state bird, a domesticated chicken breed that dominated the 19th-century poultry industry.

In the Mound Hill Cemetery resides the final resting place of the world's tallest couple.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

The final resting place of one of the most iconic musicians of the '80s.

A monument to the “unrecognized dead” of the tragic 1876 train crash.

A lost cemetery stands forgotten on a hilltop, known only to the older residents of Pomeroy.