Dedicated to the art of hunting, with juxtapositions of contemporary art.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Dolls of all shapes and sizes display the eras of femininity in this spooky and beautiful collection.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

The resting place of a Civil War celebrity's amputated limb.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

The trials and tribulations of marking Poe's grave.

America's first federal monument.

An original apothecary from 1792.

A former electrical substation is now home to an eccentric junk art masterpiece.

Continuing the tradition of the dime museum in style.

One part antique store, one part curiosities hodge-podge.

DIY collection of eclectic holdings.

A grove of colossal man-made flowers built to collect the sun's rays.

A walkable map of the world, made from soil and stone by one man.

Bizarre Cavern.

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.