Look closely and you’ll notice that the color changes a third of the way up the tower.

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

The word "Watergate" will forever be associated with the infamous scandal in 1972, but this fountain is famous in its own right.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

An overlooked memorial honoring the local Washington residents who died in World War I.

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

The national park was once a plantation estate.

At 207 feet, one of the world's longest continuous escalators.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

Parking garage where Bob Woodward met Watergate source "Deep Throat."

The hidden offices underneath Memorial Bridge have been locked up since 1976.

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

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

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

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

The former home of the man whose radical ideas changed the nation.

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.

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

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

This church is known as "The Home Church of George Washington and George Mason."

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

This small pedestal marks the spot of the first lot of land sold in Alexandria, Virginia in 1749.

An original apothecary from 1792.

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