Three and a half miles of cliffs, rocky beaches, Gilded Age mansions and 40 Steps to nowhere in particular.

Forgotten under the construction of a new urban roadway is a small, abandoned part of town.

An abandoned 146-acre summer resort slowly being reclaimed by nature.

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

A once-booming railroad left abandoned next to the Quinnipiac River marshes now intersects with a hiking trail.

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

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

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

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

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

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

This site was once the largest ski jump tower in the world.

Packed with gear and memorabilia, this museum chronicles the history of skiing and how its rise shaped New England.

America's oldest archaeological site or a muddled case of wishful thinking.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

Even Henry David Thoreau found this glacial pothole irresistible.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

The quarry was abandoned over 100 years ago, after a massive ammunition explosion ended in tragedy.

Abandoned rock quarry now a haven for mountain bikers and hikers.

Surprisingly aquamarine waters fill deep lakes formed at the end of the last ice age.

One of the few surviving original NASCAR dirt-track speedways.

Where monkeys run wild and the humans are caged.

An abandoned water sports stadium that has become a haven for graffiti and decay.

An underwater city for the dead.