A tribute to those that perished during the American Revolution.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

One of the world's oldest continually operating bookstores.

George Washington, Alexander Hamilton, and Benjamin Franklin all slept at this humble inn.

A winding, cliffside stretch of road overlooking the Delaware River.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

The walls of the iconic dome are hollow and have a secret stairway.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

This statue of the "father of television" stands prominently in the United States Capitol.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

Look closely and you’ll notice that the color changes a third of the way up the tower.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

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

The Cadillac Ranch for monster truck aficionados.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

One of the best places to see wild Colonial Spanish Mustangs in the United States.

The lesser-known lost colony of Roanoke was a safe haven for formerly enslaved people during the Civil War.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

This elaborate towering structure was once famed for its revolutionary height.

In use from 1742 to 1910, only flat headstones were allowed in this cemetery.

America's oldest drive-in movie theater has been in continuous operation since 1934.

Dedicated to a legendary spiritual vision.

Dedicated to one of the most successful boxers to compete in the heavyweight division.