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 largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

The ruined remains of a coal mining ghost town are hidden within the woods.

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

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

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

In the early 1800s, surgery was also a show.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

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.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

In the bowels of a 19th-century brewery lurks a fine-dining restaurant offering an array of themed feasts.

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

This public space is speckled with the eerie remnants of a defunct amusement park.

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

The graffitied ruins stand hidden within the Pennsylvania woods.

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

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

In which a local geological marvel becomes a quaint roadside attraction.

This little museum in the town where zombies were born celebrates the living dead.

The oldest surviving botanic garden in the United States.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.