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

The last early 20th-century schoolhouse in Fairfax County has galvanized the community and engendered a spirit of service among residents.

This hidden treasure provides a charming access point along the south side of Baker Park.

According to local history, this cast-iron canine was nearly melted down for bullets during the Civil War.

The hidden ruins of a mill that is linked to an attempt to assassinate the vice president of the United States.

Three abandoned missile silos are hiding in plain sight behind a suburban development in Maryland.

First built around 1848, this bridge was destroyed by arson, but original timbers are included in the replacement.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

One of the oldest train stations still standing in Virginia played a vital role during the Civil War.

This unassuming passageway played a key role in one of the most important events in U.S. history.

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

This hot dog-shaped diner has moved all around Colorado, never been to New York.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Home to items never before seen by the public.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This general store has stood in the same spot for well over a century.

This propitious plastic porcine has been petitioning park visitors to pick up after themselves for more than 50 years.

A museum cafe showcases Native American dishes and indigenous ingredients from across the Western Hemisphere.

The story behind this beloved toy—named for Theodore Roosevelt and owned by his grandson—is more complicated than you might guess.

One of the best-preserved medieval streets in Europe.

The former home of Dr. E.B. Henderson, also known as the "Father of Black Basketball."

The smallest covered bridge in Maryland.

This Maryland farm is known for its amazing corn mazes and its 30-foot junkbots.