This rowhouse doubles as one of the most photographed spots in the nation's capital.

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

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

A clone of a cloned tree that was so important it allegedly had its own guards.

The most accurate timepiece in the world.

Perhaps the most scandalous statue of America's first president.

Home to items never before seen by the public.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

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

A semi-scholarly approach to sex.

A strangely forgotten claimant to the much contested title of "Source of the Nile."

Where the White Nile River dramatically cascades between Lake Kyoga and Lake Albert in Uganda.