One of Gettysburg’s least visited battlefield memorials is off the beaten path, but worth a visit.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Berkeley Springs State Park boasts the nation's only monument commemorating presidential bathing.

Once America's tallest structure, now a Baltimore landmark.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones’ locker.

Could it have picked a better place to land?

Where the oil industry began.

The penultimate and final resting places of British General Edward Braddock—minus a few bits and pieces.

"Where the ducks walk on fish."

Ohio's 19th-century communist micro-society.

This restored house is like a time capsule of the president's unconventional inauguration.

Created by four famous men, the beautifully designed Buffalo State Asylum was resurrected as a hotel and art center, but still boasts a ghost story or two.

One of Frank Lloyd Wright's greatest—and favorite—architectural masterpieces was almost lost.

This dramatic rail curve was once the target of a failed Nazi attack.

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

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

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

Cleveland's giant "free" stamp is a nod to the Civil War, but was misinterpreted for years.

A bronze monument to Cleveland's favorite, fastest son.

Beyond the usual stories that attend old prisons, this one has deep bloody undercurrents.

For decades, this waterfall remained hidden because of an artificial dam.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

This advertisement for talcum powder was painted on the rock face and has since defied removal.