Pennsylvania's own Roswell-style UFO mystery.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

A strip of modern stores in historic buildings.

New York's southernmost subway station is whimsically wavy.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Tucked behind New Jersey's abandoned Gingerbread Castle lie the eerie ruins of a once-flourishing paper mill.

This decommissioned surface-to-surface missile resides outside the American Legion Post in Pennslyvania.

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

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

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

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

This beloved marketplace mascot poops money and grants good luck.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

A daily replay of the experiment that proved the rotation of the Earth.

A grotesque Fiji merman dwells within this traditional Dutch-style building.

A blend of art, antiquities, and Americana fill this museum, surrounded by whimsical, enchanting gardens.

Outsider art meets paleontology at this roadside reptile repository.

A pyramid commemorates the birthplace of James Buchanan, the 15th president of the United States

Look closely and you’ll notice that the color changes a third of the way up the tower.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.