This abandoned cemetery is crumbling into ruin, exposing the artifacts and bodies buried there.

This abandoned factory on the Hudson River once churned out a million bricks a week.

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

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

This abandoned ironworks was once the most important military supplier in America.

This house was the subject of an Edward Hopper painting, which in turn helped inspire the design of the Bates house in Alfred Hitchcock's 'Psycho.'

A waterway covered over after the Industrial Revolution has been unearthed and cleaned up, for the enjoyment of fish and humans alike.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

The first pet cemetery in the United States.

All that remains of a magnate's dream home is a historic gate and an abandoned public pool.

One of the earliest graveyards in the region.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

The first American home of the isolated, egalitarian religion has a trove of Shaker architecture and artifacts.

This relic of 19th-century infrastructure is one of the few remaining coal gas storage tanks in the U.S.

Fossilized sea bottom and lime quarry.

This picturesque cottage was the site of Ulysses S. Grant’s final and perhaps most important campaign.

Little Red Lighthouse under the George Washington Bridge.

A castle built for love, and abandoned due to heartbreak.

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

This small and serene place for quiet reflection on Staten Island was built in China based on the gardens of the Ming Dynasty.

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

The factory for the popular Dumbo location, the Greenpoint shop is a quiet gem.

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.

The first and only carousel with a lineup entirely of insects.