Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Now a living classroom, this house was once the home of Reverend James Clinton Dent, a formerly enslaved man and a pastor.

One of the first Second Empire-style buildings constructed in North America.

This stimulating sex toy museum is sure to arouse the interest of its visitors.

This Japanese-inspired park showcases the city's peculiar trends for naming features after foreign rulers.

Recorded as the first person buried in Arlington Cemetery.

A gift from Scotland to the United States in memory of the 270 lives lost when Pan Am Flight 103 exploded over Lockerbie due to a terrorist bombing.

The former home of the woman who successfully fought to integrate restaurants in Washington, D.C.

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

A natural spring situated on the grounds of the Hawthorne estate.

This shale formation along the Appalachian Trail once inspired the third president of the United States.

Built in the 1850s, this church was of the first five churches constructed in Harper's Ferry.

The world's oldest soul food restaurant is also one of its best.

The oldest military monument in the United States.

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

The former home of Lillian Evans Tibbs and her grandson, Thurlow Evans Tibbs Jr., whose prodigious contributions to music and art spanned more than 90 years.

Just outside the Naval Academy, Hell Point is a historical marker that could easily be the point where failed students wait for the bus.

The smallest covered bridge in Maryland.

This statue honors the author's groundbreaking family story.

This building at the south end of the boardwalk was once home to the U.S. Life-Saving Service and the U.S. Coast Guard before being rescued itself.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

A historic cemetery with unique artwork, a Civil War fort, and also happens to be the site of the Battle of Bladensburg.

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

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