A once grand hotel is being retaken by the wilderness it once capitalized on.

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

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

A toxic ghost town sitting atop a massive coal fire.

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

Try not to get slimed in Tribeca.

A history of tragedy and a pile of eerie stories have contributed to this house's consistent ranking as one of the most haunted places in Ohio.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

One of only two commuter aerial tramways in the United States.

This former factory has deep ties to rubber production in Akron.

An enormous factory from the late 1800s sits abandoned on Cleveland eastside.

The oldest operating apothecary in the US has treated everyone from Thomas Edison to Mark Twain.

This unique piece of land is home to a patented artificial lake and the remains of an old Girl Scout camp.

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

This historic Ohio bridge is adorned with fanciful locks left behind by loving couples.

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

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

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Abandoned since the 1950s, the streetcar lane beneath the heavily trafficked bridge lays empty and unused.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

The ruins of the suspension bridge hang over Kingsbury Run as a ghost of racial prejudice.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.