Most-visited and most-photographed slot canyon in the American Southwest.

Rippling sand dunes frozen in the Arizona rock.

This throwback amusement park is home to rides and unique storybook figures from the past.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

A decommissioned military complex that's now a modern industrial park.

Once a popular watering hole among longshoremen and shipyard workers, this neighborhood treasure spans more than 100 years of Red Hook history.

An isolated beacon with a history of grisly murder and a view of some of literature's greatest inspirations.

A prohibition era watering hole for the police.

A Ukrainian church canteen doles out hearty fare in an East Village basement.

The remains of what was once the world's steepest passenger funicular.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

The largest known open fault in the United States is basically a giant natural refrigerator.

A hidey-hole sandwiched between cellphone, DVD, and jewelry stores features Tibetan delights.

A retired subway car stands alone in a field in the middle of Queens.

Some of New York's best tacos can be found in the back of an unassuming bodega in Queens.

Ruins of a once-prized railroad station in New York.

Waterway populated with abandoned projects, including a submarine.

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

An old dining hall now serves up ghost stories for lusty locals.

Final resting place of two dozen New York City harbor ships.

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.

A former connection to City Island, it has been abandoned since the 1930s.