One of the first canal boat-lift inclines ever created.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

This public space is speckled with the eerie remnants of a defunct amusement park.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

A clone-tree in Washington Square Park sprung from seeds that went to the Moon and back.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

The origin of this mechanical boy was a mystery until he revealed his maker by writing it in perfect cursive.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

A park full of outsider art, created by college students studying outsider art.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This eclectic homestead is home to a miniature windmill and Connecticut's last tollbooth.

The real-life site of Ichabod Crane's infamous gourd attack.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

The abandoned ruins of America's first private zoo are open for exploration in the Catskills.

This throwback amusement park is home to rides and unique storybook figures from the past.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

Site of the first pathological and bacteriological research facility in the United States.

This former farm In northern Iceland is now a museum, where visitors can tour beautifully-preserved turf houses.

In this cemetery stands the country's first public crematorium.

Behemoth, cannon-like telescope operated by generations of Irish earls.