It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

The remnants of an early American attempt at missile defense.

Amazing views of Long Island Sound can be seen from this mountaintop tower.

Iconic rock formations that allow for exploration during high or low tide.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

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

This stone tower marks a lookout point over the historic Washington Crossing, and maybe some buried treasure.

Step into Monet's world at this fine-dining restaurant in the middle of a New Jersey sculpture park.

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

A wooden theatre that remains the heart of a charming Victorian-era New Jersey enclave.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

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

The first dish to bounce radio signals off the Moon, it was the forerunner to the U.S. Space Program.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

An eccentric priest's tribute to George Washington, this chapel tells the story of the American Revolution.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

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

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

Eccentric concrete mansion and museum designed and built by hand from the inside out.

Where America's first doomsday cult awaited the end of the world.

Believed by many to be the oldest surviving public monument in the United States.

The 92-foot-tall structure is based on the aircraft that carried the first Americans into space.

After the state would not recreate this beloved rock formation, three New Hampshire brothers took things into their own hands.