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.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

Time travel with sweets across history at this research-based candy store.

This "castle" is actually a limestone and quartz formation hidden along a trail.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

A faded sign from the 1920s remembers Baltimore's resistance toward banning alcohol.

Wedged between two sets of row houses is an awkwardly located family graveyard.

This bug-eyed water wheel uses the power of the Sun to clean up Baltimore Harbor.

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

The house where John Wilkes Booth conspired with his co-conspirators.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

This poor little statue is the most vandalized memorial in Washington.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

Outside the Department of Transportation, a collection of artifacts honors the history of how we get around.

"Congress may voluntarily remain in session throughout the summer, in order that our Congressmen may be protected from the intolerable discomforts and dangers of the ordinary outdoor weather!”

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

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

A historic arena where the Beatles played their first concert in the U.S.

Atop this media building, two hives containing more than 30,000 bees keep the surrounding area vibrant.

One of the last mosaic tile facades found in the city.

A small park honors the legendary Ukrainian poet.

A tribute to the pop culture icon overlooks this Washington D.C. intersection.