The rusting remains are visible sticking out of the waters of the Delaware Bay.

One man's lifelong obsession with death.

Home to the world’s oldest seismograph and a four-ton steel ball that makes its own earthquakes.

North America's largest accredited model railroad museum.

An inconspicuous suburban street corner is the site of San Diego's worst air disaster.

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

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

This might just be the TARDIS of bookstores.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

Pennsylvanian mass grave and possibly mass murder.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

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

America's first serial killer rests in anonymity.

The final resting place of one of the United States's greatest poets.

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

Designed by Horace Trumbauer in 1893, this Gothic-style castle is now a home for academics.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

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

The taxidermied remains of Charles Dickens' pet raven, which helped inspire one of Edgar Allan Poe's most famous poems.

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

A living antique aviation museum in the historic town of Red Hook, New York.

Images chiseled into the basalt here date back an estimated 300 years.

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

Formerly a lovely white sand beach this Hawaiian stretch is now a trap for countless tons of trash.