These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This elaborate towering structure was once famed for its revolutionary height.

Try not to get slimed in Tribeca.

Unrepaired walls from a 1920 anarchist bomb attack.

Manhattan's lighthouse, erected at the insistence of the unsinkable Molly Brown.

The façade of this building looks like a bingo board, but it's really a giant clock by a famed graphic designer.

The "lovely red Vega" of the legendary record-settling pilot.

It was once the base for a series of domestic terror attacks.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

A line of blue paint marks the route of the inaugural parade.

Through the decades, Black music stars have performed at this historic hub for music and the arts.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

Also known as the Founding Church of Scientology.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

There just so happens to be a court even higher than the U.S Supreme Court: a basketball court in the building itself.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

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

Art deco landmark on the outskirts of Washington, D.C.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.