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

Memorial built in 1922 in remembrance of WWI casualties.

Step inside Lucy, the world's largest "elephant."

The Dover International Speedway is home to a towering, concrete-skinned, racecar-hungry behemoth.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

In which a local geological marvel becomes a quaint roadside attraction.

Beautiful stained glass depictions of the history of human flight fill this surprising chapel.

A failed piece of Orientalism has become the proud symbol of a community.

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

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.

A daily replay of the experiment that proved the rotation of the Earth.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

Delicate Wurlitzers, creepy clowns, and The Noid all share space in this insane explosion of kitsch history.

This historic old movie house was the scene of one of the Blob's most iconic attacks.

One of the oldest log cabins in America is one of the last of its kind this historic Swedish dwelling remains a piece of living history.

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

This collection of odd proofs of concept is like taking a walk through the imagination of a Victorian engineer.

Pennsylvanian mass grave and possibly mass murder.

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.

This might just be the TARDIS of bookstores.

The site of the deadly Triangle Shirtwaist Factory Fire.

Salute the leader of the proletariat.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

A posh members-only club with a literally dramatic history.