The second oldest continuously operating bar in Louisiana.

Formerly known as National D-Day Museum, this collection commemorates the battles of Normandy and WWII.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

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

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

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

The oldest building in the District of Columbia was preserved because of a mistaken connection to George Washington.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

A historic ruin just 20 feet away from a busy highway onramp.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

Parking garage where Bob Woodward met Watergate source "Deep Throat."

At 207 feet, one of the world's longest continuous escalators.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Before Nixon, "watergate" meant canals.

A portal into the bricked up canal that runs through the heart of Washington D.C.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

The winding route passes through an enclosed alleyway, two tunnels, and leads to the White House basement.

The house where John Wilkes Booth conspired with his co-conspirators.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

A line of blue paint marks the route of the inaugural parade.

Fittingly, America's museum of architecture is itself a magnificently designed old building.