This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

This cemetery is home to numerous granite headstones that are works of art unto themselves.

From horses to stainless-steel trucks, this iconic Providence burger wagon is one of the oldest mobile diners in the country.

A former zoo turned public park, where visitors can hang out in the old animal cages.

Ralph Waldo Emerson spent two years living here decades before it became a Frederick Law Olmsted-designed park.

The bears may be gone, but their old cages can still be found.

The often-overlooked ruins of one of the first buildings designed by famous landscape architect Frederick Olmsted.

This memorial garden is the final resting place of many beloved pets including that of a famous explorer.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

A museum dedicated exclusively to the lore and history of ouija boards.

The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

Over fifty whirling pools left by the glacial age.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

A tribute to the couples who brave long periods of separation during wartime.

This stately structure has been abandoned for half a century.

This historic mini-suspension bridge was swept away once but is now here to stay.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

A stone memorial erected for New Hampshire's only convicted witch.

A collection of full-size movie monsters opened to the public.

An eccentric inventor's castle home with its own indoor weather system.

Two thousand artifacts from around the world collected by one woman who loved to travel.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.