Interactive museum complete with costumed re-enactors and the only known surviving chest from the Boston Tea Party.

Created by a local artist, these quirky sculptures each have their own names and personalities.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Millions of numbers carved in glass represent the tattoos forced upon victims.

This little-known rival to the Library of Congress houses one of the largest collections of pre-1876 American books, newspapers, and manuscripts.

Dedicated to one of the darkest moments in Irish history.

The bears may be gone, but their old cages can still be found.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Take an underground boat ride through a former hydraulic raceway that was built in the late 19th century.

This abandoned amusement park was built on a site with a dark history.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

An abandoned village that doubled as "The Hunger Games"' post-apocalyptic wasteland is up for grabs.

This sanitorium-turned-asylum-turned-prison is now abandoned and a hotspot for enjoyers of the paranormal.

This elaborate towering structure was once famed for its revolutionary height.

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

South Philadelphia is home to Keith Haring's only surviving in situ collaborative public mural.

Step into a pastel time capsule where candy is truly dandy.

Yo, Adrian!

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

This eerily well-preserved coal town was saved from destruction by a Sean Connery movie.

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.

A layered tribute to the work of mosaicist Isaiah Zagar.

The world’s first penitentiary, meant to be humane, drove men insane.