Military

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

Connecticut's shot tower is near the end of its life.

The world's tallest shot tower—maybe.

A 168-foot tower, part of the abandoned Chester Leadworks facility.

A quaint village in Western New York named after Alexander Hamilton's beloved sister-in-law.

A Canadian POW for German soldiers during WWII where prisoners hatched an elaborate escape plan.

The U.S.' first commercial park dedicated entirely to flying drones.

The childhood home of one of Ohio's favorite sons, pilot and war hero Eddie Rickenbacker.

The mass grave of a heroic Revolutionary War regiment sits below an empty lot near the Gowanus Canal.

Thirteen trees representing the original thirteen colonies were planted with soil from historic Revolutionary battlefields.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

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

The humble fort that saved Washington.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.