One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

The Boston square dedicated to the dark poet who was born nearby.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

France's national museum of scientific and industrial instruments.

Hundreds of 19th-century characters descend upon an Ohio town every autumn.

An unknown number of cholera victims are buried in two nondescript graves.

North America's oldest quarantine facility was built in response to Philadelphia's 1793 yellow fever outbreak.

Where America's first doomsday cult awaited the end of the world.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

These medicine cabinet staples are part of the museum's collection of everyday objects.

The largest clock face in the United States is twice the size of Big Ben and infinitely more ad-sponsored.

Penn State's giant bug collection.

An occult-y, historic hotel with the World's Largest Ouija board on the roof.

Long hidden under grime, the politically radical murals of a little known Yugoslavian master are finally getting their due.

The headquarters of the Fraternitas Rosae Crucis, complete with Rosicrucian pyramids, all in the Pennsylvania woods.

This might just be the TARDIS of bookstores.

Where experiments are conducted on all things wood.

A statue honors the genius who allegedly first took a meatball and made it into a hamburger.

This circus town museum recognizes the outstanding clowns of history.

A collection of 1,300 accordions of all shapes and sizes displayed in chronological order.

A hundred-year-old museum filled with giant physics toys and experiments designed by grad students.