This groundbreaking 16th-century map is known as "America's birth certificate."

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

This statue of one of baseball’s greatest pitchers looks like something out of a sci-fi horror movie.

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

The tunnel under the Capitol Building where Congress takes out its trash.

Architecture lovers won’t stop touching the National Gallery's 19.5 degree marble prow.

The only Leonardo Da Vinci painting in 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.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

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

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

She stares out across six lanes of traffic, clutching a musket and infant with determination.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

An allegorical sculpture in Maryland wears the artist’s politics on its trunk.

This bell is one of the last remnants of the lost city of Triadelphia.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

The first memorial dedicated solely to the Black troops who fought for the Union.

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

In an alcove of this historic library, you can find murals painted in the 1930s by an artist who went on to create some of Disney's most iconic animated films.

Dedicated to the man who created the first radio wave communication system.