One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

A historic neighborhood church is reborn as a psychedelic arts collective.

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

A super-sized promotional trick that is now a D.C. landmark.

The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

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

A former major munitions plant that has been converted into a sprawling art space.

The narrowest house in America is seven feet of pure spite.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

Step into a pastel time capsule where candy is truly dandy.

This little brick tunnel built by Confederate forces was used to conduct surprise attacks on the railroad.

This lonely waterfront memorial to the men of the Titanic was erected by the "Women of America."

This artistic fountain display pays homage to this area's theatrical history.

Opened in 1976, this monster-sized version of the fast-food franchise is sometimes called the Epic McD.

St. Augustine's record-setting narrow street was designed to protect against pirates.

The site of Martin Luther King Jr.'s arrest as he attempted to have lunch.

Bronze footprints mark the path where a civil rights leader tried to march in peaceful protest before being knocked unconscious.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

Before Metro, Washington had a robust streetcar network—and you see the remains of this infrastructure if you know where to look.

This historic boathouse was constructed using salvaged lumber from burned barns.