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The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

This "second" cemetery represents New Orleans' attempt to keep cholera at bay.

Former hotel turned into haunted playground.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

The ruins of this Alaska gold mine form a gorgeous ghost town.

Preserved "bog person" that is over 2,000 years old.

A mad mystery man who led Canadian mounties on a 150-mile wilderness chase is still buried with his secrets intact.

Eclectic final resting place of the controversial explorer.

The Egyptian-inspired last resting place of Lord Kilmorey.

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

One of Ireland's most infamous prisons for rebels including men, women and children.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

Final resting place of Antarctic explorer Ernest Shackleton.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.

A life-sized memorial to Harry L. Collins, the official corporate magician of Frito-Lay.

Small-town museum dedicated to outer space ... and bicycles.

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

This historic cemetery is filled with markers that look more like candy than was likely intended.

The hide of Stonewall Jackson's equine sidekick is on display not far from where the ashes of his bones are buried.

This preserved puppy was an adorable beacon of charity.