WATCH: Why is the Washington Monument two different colors?

On the 139th anniversary of the District’s most iconic landmark, WTOP’s Jimmy Alexander speaks with a historian about the controversy that many Washingtonians don’t know about.

Related Keywords

Rebecca Grawl , Mark Twain , Thomas Lincoln Casey , Members Of The Know Nothing Party , Us Army Corps Of Engineers , Washington Monument , Know Nothings , Know Nothing Party , Pope Stone , Potomac River , Thomas Lincoln ,