Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

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.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

The resting place of a Civil War celebrity's amputated limb.

The final resting place of two (or three) presidents, one vampire, and 18,000 Confederate soldiers.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

An abandoned church gets a second life as a massive beer hall and event space.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

The land is home to swimming ponies and a legendary 18th-century treasure.

The oldest surviving presidential residence in the United States.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

America's first serial killer rests in anonymity.

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

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

Mysterious rocks that ring musically when struck.

A toxic ghost town sitting atop a massive coal fire.