This small, hidden cove is home to abandoned boats.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

This abandoned subway station can still be seen on regular commuter trips.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

From scholastic to sepulchral - now under reconstruction.

This empty Victorian manse on Staten Island is said to be haunted but is actually a real life crime scene.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

A room in New York City that contains 250 cubic yards of dirt worth a million dollars.

Hidden in Central Park's Ramble is a troublesome cave buried just beneath the surface.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

This multi-story wooden waterpark offers homemade thrills.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

A mountaintop space observatory that is certified dark.

In a pedestrian tunnel on North Carolina State’s campus resides an expressive and artistic free-for-all.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.

This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

Ruins of an American Civil War iron forge still survive today.

A piece of outsider public art accompanied by a strange urban legend.

Gnarled canopies of pink and purple wildflowers arch over the trail to the summit.