Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

The Aldie Gristmill was once the largest factory of its kind in Loudoun County.

In what is rumored to be an intentional act of spite, this memorial almost completely obscures the nearby grave of a senior officer.

The naval commander’s proudest moment in battle is memorialized in this unique tomb at Arlington Cemetery.

At Brandy Station, Civil War soldiers left their mark on the battlefield and the walls of this small wooden house.

The grave of a champion Thoroughbred hides within the former presidential estate.

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

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

This pun was simply waiting to come to life, and one defense contractor made it so.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

This cannonball stands as a reminder of the final act of a fleeting governor amidst a revolution.

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

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

An eight-sided home built during a brief octagon craze in the 1850s.

The resting place of a Civil War celebrity's amputated limb.

A home built with marble tombstones from the graves of 2,200 Union soldiers buried in a Virginia cemetery.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

Cambridge’s century-old outdoor swimming pool is tied for being the longest pool in the United Kingdom, but it is also unusually narrow.

A colony of Mexican free-tailed bats live under the bridge and take flight at sundown all summer long.

The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.