The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The oldest continuously operating farm in New York State.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

Whale bones, scrimshaw, and sperm oil make up just a part of this comprehensive collection of whaling history.

The site of a tragic massacre that spawned a multimedia franchise.

An unrealized dream to wirelessly electrify the entire Earth.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

An eccentric playboy's astounding natural history collection.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

A formerly abandoned mental institute, now back in business.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Home of Philip Johnson, one of the 20th century's most influential architects.

This disastrous New Jersey safari park saw animal attacks, escapes, and disease before being abandoned.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Adherence to strict Jewish laws is required to enter this ultra-conservative New York village.

100 massive sculptures in the Hudson River Valley.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

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

The only intersection in America where the buildings on all four corners were built pre-Revolutionary War.