Mysterious rocks that ring musically when struck.

An abandoned stretch of highway, deteriorating next to the operational one.

A hidden piece of Altoona's railroad history in a long-forgotten abandoned town.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

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

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

This jail which was in service for over a century is now open for curious visitors.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

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

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

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

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

These mystical miniature houses bring a touch of magic to the New Jersey woods.