Places kheimlicher Wants to Go

Rising 30 feet in the air atop Quarry Hill, the Old Powder House is the oldest stone building in the state of Massachusetts.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

It's not a typo, now say it five times fast!

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

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

A homemade anatomical collection of medical anomalies and accidental catastrophes.

An 80-year-old house built out of newspapers.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

The remains of a hospital ravaged by fire, once a progressive place of innovations for disabled children.

Site of the first pathological and bacteriological research facility in the United States.

A crumbling hospital from the 1850s on Roosevelt Island.

This former crime corner has been turned into an eclectic community center.

A living archive of urban activism and space reclaimed.

A small part of lower Manhattan is actually made from a bit of England.

Feral cats keeping the rodent population at bay all across Greenpoint waterfront.

Nondescript elevator doors open to reveal a stunning, surreal world.

Behind a bodega is a small museum of relics and ephemera showcasing the history of New York.

This mysterious abandoned fort looks like something pulled right from Arabian legend.

Cars mysteriously roll uphill on this street.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.