Hidden in the hills of Western Pennsylvania lies one of the best-kept ghost towns in America that you can legally visit.

Penn State's giant bug collection.

Narrow gorges and deep pools created by long-ago glaciers.

A small museum along the Susquehanna River is home to a rich collection of Native American artifacts.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

Nothing says indulgence like a 1,500-pound chocolate castle.

An extraordinary collection of vampire-themed antiques lurks on the second floor of a store.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

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

A failed piece of Orientalism has become the proud symbol of a community.

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

This museum boasts a bucket of teeth and tells the tale of a 20th-century dental circus.

Journey through a collection of over 35,000 Halloween items from all generations.

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

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

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

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

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

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

The graffitied ruins stand hidden within the Pennsylvania woods.

This meticulously extracted nervous system allegedly came from a 19th-century custodian who donated her body to science.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.