This petite park lets visitors see and touch examples of fossilized dinosaur tracks.

Inside a state forest, the forgotten remains of a Cold War defensive installation.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

The graves of a Connecticut family thought to have been plagued by a vampire.

An abandoned Depression-era zoo hidden just off the highway.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The ancient past meets the retro-future at these dinosaur tracks that are protected by a geodesic dome.

The ruins of an abandoned 18th-century town that is slowly being reclaimed by the forest.

The kind of mixed-up place that drives archaeologists crazy.

Ruins of a historic medical facility sits eerily by the water.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

The real-life site of Ichabod Crane's infamous gourd attack.

The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

A peaceful international sculpture garden in upstate New York.

A self-made museum in Queens, New York continues to display the work of a sculptor known for paving his own way.

These mouldering mansion ruins remember a time when the Catskills were nothing but luxury.

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

Join in a Seance at the Swedenborgian Church.

This tiny little island has, as the name says, just enough room for its single house.