Harlem park dedicated to compulsive hoarders killed by their own junk.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

The best place in New York to pick up the controversial, notoriously foul-smelling Asian "king of fruits."

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

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

An unassuming secret door once led to a legendary watering hole.

The Cape Cod house that whaling built.

This mysterious artificial cave has long puzzled New Englanders.

Impossibly life-like natural history models created out of glass by a father and son.

The history of the tea trade is told in bas-relief on this historic pair of Boston doors.

This tiny, painted door at the base of a tree stump has been a fixture of the Harvard University campus for decades.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

Over fifty whirling pools left by the glacial age.

A macabre tour of Hollywood’s deadly history.

Instead of hoofing it up steep stairs, residents can hitch a ride on this private lift.

This traditional garden in the San Fernando Valley doubled for Star Fleet Academy, and is irrigated entirely by wastewater.

The L.A. Zoo has a secret garden of rare bootleg cycads, a palm specimen dating back 280 million years.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

The final resting place of a space program monolith.

The remains of the first punk club in L.A.

"Looks so real, it's scary!"

One man's vast collection of artifacts and ephemera from matchbooks and postcards to vintage neon signs and cars.

This Los Angeles animation studio is keeping the wonder of stop motion puppetry alive.