One of the world's oldest continually operating bookstores.

An underground blaze turned this village into a ghost town.

These hooded graves are the only of their kind in the United States.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

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

Built in 1815, the stabilized ruins of the grist mill and sawmill are now gated, but interpretive displays on the features and functions of the mill preserve its history.

The smallest covered bridge in Maryland.

Unannounced visitors are now welcome at the site of the largest Prohibition-era bootlegging operation in the region.

A rock maze opens up to a panoramic viewpoint at an abandoned mine full of ghost stories.

A simple plaque remembers an act of WWI terrorism that obliterated an island and forever scarred the Statue of Liberty.

This tiny New Jersey village has lived many lives but seems determined to remain a ghost town.

An outlandish shoe shaped house built by an eccentric millionaire.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Visitors to Salt Springs State Park are encouraged to literally put their two cents in Penny Rock.

This beloved marketplace mascot poops money and grants good luck.

An industrial waste tourist attraction.

A local prank turned town icon.

Where America’s first doomsday cult awaited the end of the world.

In the 19th century, this canal provided power to mills, machine shops, and other businesses in the area.

This massive sycamore tree has been labeled as one of the largest in the state.

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

One of the few remaining covered bridges in Lancaster County.

Oldest existing wire suspension bridge in the United States.