A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

The sign at the garden gate reads: "These Plants Can Kill."

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

This stately mansion, built in 1787 by America's first Secretary of the Navy, is rumored to be one of the most haunted buildings in Washington, DC.

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

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

An original apothecary from 1792.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This stunning home looks like it belongs in medieval Europe, not North Carolina.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

Collecting 700 years of mechanical death-dealing, the NRA's sprawling gun museum is a revealing testament to the American obsession with armament.

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

Taste the white whiskey that the United States' first president once distilled and enjoyed.

The only place for a truly presidential dram.

This twice-relocated "Usonian" home is among the smallest built by master architect Frank Lloyd Wright.

The U.S. Army's giant warehouse of war art includes Hitler’s watercolors and Norman Rockwell oil paintings.

This church is known as "The Home Church of George Washington and George Mason."

The sole surviving building from Newgate village, a colonial settlement that was renamed Centreville in 1792 after it was granted town status by the Virginia Assembly.

Dine like an American revolutionary at Colonial Williamsburg.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

Take a steam-powered ride straight out of the past on this Appalachian rail line.

The remains of a failed attempt at medieval nerdery are hidden deep in the woods of Virginia.

Constructed by the younger brother of George Washington.