A home that witnessed Civil War combat on the Sunken Road has the battle scars to prove it.

The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

This small museum houses rare airplanes from aviation's golden age.

The site of one of the deadliest skirmishes during the Battle of Fredricksburg.

Built to defend Washington D.C. during the Civil War, this fort became a post-war nucleus for a thriving Black community.

America's first federal monument.

This rudder is one of the few remnants of a shipyard that once operated on the banks of the Potomac River.

The trials and tribulations of marking Poe’s grave.

This 150-year-old train station and caboose have been turned into a railroad museum, enjoyed by young and old alike.

An extraordinary collection of aircraft and spacecraft on display at the original site of the Boeing Company.

The elevator hidden in a smokestack on Roosevelt's yacht now serves as a monument to the former president.

Historic home of America's sweetheart sharpshooter, Annie Oakley.

This one-room schoolhouse played a significant role in the education of Black children for almost 100 years.

Both the building and blades of this reconstructed 19th-century windmill can turn in a breeze.

This 1830s store is believed to be the site of Harriet Tubman's first stand.

The grounds of former plantations where abolitionist Harriet Tubman spent her youth enslaved are now a museum to her incredible life.

A wondrous old library overlooking the nation's capital.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

George Washington's dentures and Queen Victoria's dental instruments are in the nation’s official museum of the dental profession.

It’s not hard to see why the historic Peabody Conservatory of Music’s library has been described as a “cathedral of books.”

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

A community gathering place that once housed half-ton tanks and the World's Fair.

A quirky roadside sign was the subject of a years-long legal standoff over highway right-of-way clearances.