The oldest farmer's market in America is so ancient it was approved by the King of England.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

An outlandish shoe shaped house built by an eccentric millionaire.

Constructed by the younger brother of George Washington.

Concerned residents saved this historic house and garden from demolition.

An 18th-century townhouse that once hosted guests of the president.

This plaque celebrates the sister city relationship between Fredricksburg and Fréjus.

A former pillar of the Black community in Ellicott City.

A hidden mid-city oasis, built for pollinators amid the concrete of federal buildings

Slated for demolition, this house was relocated piece by piece.

A piece of telecommunications history.

The boy drummer who became the last surviving Maryland soldier of the Revolution

This site is believed to be connected to the oldest house in Arlington County.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Over the last century, this elegant columned facade has been home to the headquarters of a bank, several nightclubs, and a restaurant.

The airport was once a Civil War battleground, and the earthwork defenses can still be seen today.

During World War II, blimps were a key part of the United States' defense against German U-boats—this building could house a dozen of the armed airships.

Nine of the very few concrete ships ever made in the U.S. are beautifully decaying off a Virginia pier.

The only remaining building from the original 1800 Isle of Wight Courthouse Complex

One of the few remaining Rosenwald Schools left in Virginia.

This tree is a living witness to the beginning of the Civil Rights Movement.

This estate on the banks of the James River was home to a Founding Father, two presidents, a famous bugle melody, and what some say was the actual first Thanksgiving.

John Tyler never got to be buried at his beloved home, but every pet his family owned since has been.