A unusual sanctuary for abused and exotic animals in South Jersey.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

A recently abandoned psych ward at the end of Sanatorium Road.

The site of one of history's most indelible and horrific tragedies.

The remains of a 19th century spring, and the site of an infamous unsolved murder.

A unique sculpture park that specializes in the huge and bizarre.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

This sculpture of a fisherman spent six years at the bottom of the Schuylkill River.

Century-old shop, specializing in Occult products.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

A curious building honoring past and current members of a historic musical comedy troupe.

America's smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

The singer, actor, and activist lived here during his final years, and now it’s a museum dedicated to his legacy.

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

Contrary to popular belief, this secluded statue doesn't represent Pennsylvania's founder.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

A daily replay of the experiment that proved the rotation of the Earth.

The abandoned coal loading dock is a canvas for unsanctioned art.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.