Military in Washington, D.C.

A replica of the famous memorial statue at the Normandy American Cemetery hides in an office building in downtown D.C.

This taxidermy horse was a Civil War hero.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

The fountains of the U.S. Navy Memorial are annually salted with water from the Seven Seas as part of a nautical ritual.

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Was there a small "backpack nuke" hidden in the attic? JFK apparently thought so.

A diminutive plaque recalls the treetop sniper who almost killed Abe Lincoln.

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

These recently uncovered walls are all that's left of Washington, D.C's first defense contractor.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

An overlooked memorial honoring the local Washington residents who died in World War I.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

The national park was once a plantation estate.

There’s a hidden military meme engraved on the World War II Memorial.