Places mkowal Wants to Go

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

Relics given to a Manhattan church to avoid seizure by the Italian government.

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

An unrealized dream to wirelessly electrify the entire Earth.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This otherwise innocuous bodega was once the headquarters of the most feared assassin's guild in American history.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

A deteriorating 1990s Girl Scout camp in a beautiful lush park on Lake Ontario.

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

What was once a trend-setting, phrase-coining icon of architectural splendor is now a rotting, forgotten hulk.

The site of a tragic massacre that spawned a multimedia franchise.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

One man's swirling six-acre monument of stone.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

This hidden library of physiological ephemera contains centuries worth of knowledge on the vim and viscera of the human body.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Once America's longest-manned military fort, now an abandoned hulk.

Lie in a hammock where George Washington stood.