A bronze monument to the infamous radio broadcast in the real New Jersey town where the fictional Martians crash-landed.

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

The creek where a shark wreaked terror upon New Jersey, and served as the inspiration for "Jaws."

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

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

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

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

An unrealized dream to wirelessly electrify the entire Earth.

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

A museum of unusual collections, mini-towns, and a half-dog, half-alligator.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

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

A tribute to Ponce de Leon's supposed quest for eternal youth.

One man's swirling six-acre monument of stone.

The secret city built by the Manhattan Project.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.