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

The first declared National Monument in the United States.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

Yes, this monument is aware that it is about 20 miles away from the actual center of the United States.

A cemetery housing wild west legends in South Dakota.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

This giant disembodied horse head seems to balance impossibly on its nose.

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

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

This park contains a number of standing stones meant to heal and inspire.

The final resting place of the Hollywood star who came to a tragic end.

The oldest farmer's market in America is so ancient it was approved by the King of England.

Mural made of 100,000 pieces of hand blown glass, and one of the largest glass murals in the US.

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

A nearly 100-year-old dining car in upstate New York embodies the golden age of roadside dining.

An abandoned dollhouse factory.

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

A once grand hotel is being retaken by the wilderness it once capitalized on.

Now the final resting place of prominent artists and musicians, it was originally founded to separate the rich from the poor in death.

Homemade rockets, dinosaurs, and robots make this New York small business much more than a furniture store.

This old cement mine has been used as everything from a mushroom farm to a recording studio.