The site of the notorious Camp Sumter Prison is now a peaceful memorial.

An unusual sculpture, an interesting history, in a strange place, for a good cause.

A relic of FDR's brief foray into utopian urban planning.

An intricately designed junk art house with four extravagant junk art cars hidden in the suburbs.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

A beacon atop a downtown building provides Bostonians with weather forecasts and baseball news.

There's a crumbling old mansion inside the Smithsonian National Zoo.

A surprising, but overlooked example of geology in the middle of the nation’s capital.

The oldest house in Washington, D.C. wasn't originally constructed in the nation's capital.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

A quirky collection of outsider art made from automobile parts.

A fiberglass jungle, deep in the wilds of the Cleveland suburbs.

A monument to the “unrecognized dead” of the tragic 1876 train crash.

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

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

This abandoned bridge to nowhere stands secluded in the woods of a Cleveland suburb.

This lovely university observatory continues to sit abandoned since its potential savior was sent to jail for fraud.

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

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

A jukebox headstone marks the grave of the Cleveland disc jockey credited with coining the term “rock 'n' roll."

Inside the unassuming cemetery chapel is a magnificent stained glass window and mosaics.