Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A college in rural Kansas founded to prepare the country for an impending World War III.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

A wondrous old library overlooking the nation's capital.

Home to items never before seen by the public.

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

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The second oldest continuously operating bar in Louisiana.