This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

The walls of the iconic dome are hollow and have a secret stairway.

A painfully obvious spy house sits right across the street from the Russian Embassy.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

A wondrous old library overlooking the nation's capital.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

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

The site of the climactic scene from the classic horror film is now a historic landmark.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

This unincorporated community in western Ohio got its peculiar name from John "Daddy" Baker.

An old church full of restored Catholic statues is a makeup artist's labor of love.

On a wall in Cleveland, Ohio find the story of a highly connected fictional community of organisms that created remarkable, lasting structures.

A single handprint, which, according to Ohio State University legend, cannot be scrubbed off.

This recycled wax museum may be the only one that features John Travolta in a Bible scene.

Solving a 60-year mystery finally gave a name to the young woman known only by the color of her clothes.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

The only presidential monument to display a late POTUS's actual casket.

Superfans of The Shawshank Redemption can take a driving tour of most of the films real locations.

This burger joint is named after everyone's favorite carnival prize and is adorned with a giant one over the door.

The heroic sled dog of the 1925 serum run is preserved in taxidermy.

Unique collection containing a wide and curious range of contraceptive items.

This pair of eccentric Ohio castles were built by a pair of brothers who wanted to bring a bit of class to the Ohio wilderness.