This large boulder was used as a lookout point by Revolutionary War militiamen.

An actual piece of the Moon, brought down to Earth by Apollo 15.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

The sole surviving building from Newgate village, a colonial settlement that was renamed Centreville in 1792 after it was granted town status by the Virginia Assembly.

A superbly preserved example of Georgian residential architecture that was once home to one of the founders of Alexandria, Virginia.

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

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

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 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

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

Originally dubbed "Retirement" by the Navy Commodore who built it in 1780, this beautiful mansion is now the centerpiece of a suburban community park.

This cannon dating to 1755 has stood guard at this suburban intersection since 1915.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

This homestead was occupied by Union soldiers, who believed the owners were signaling Confederate forces.

The skeletal white beams stand as a monument to religious dissent.

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.

The only place for a truly presidential dram.

A whopping 14,000 copper coins cover this miniature fighter jet.

The largest cemetery for enslaved people in Loudoun County was almost lost to history, if not for the research of a minister.

The oldest arched-covered bridge in Virginia has truly withstood the test of time.

The national park was once a plantation estate.

Heron, whitewater rapids, and urban industrialism all add to the beauty of this concrete nature walk.