Up to half a million women gathered for the Women's March on Washington against newly-inaugurated US President Donald Trump.
The National Mall featured lots of bright pink hats and signs that said "less fear more love'' and "the future is female.''
Among those in attendance was famed pioneer feminist Gloria Steinem, who compared President Donald Trump's "Twitter finger'' to a trigger finger.
Some 1,800 buses were registered to park in the city, but attendants also arrived by planes, trains and automobiles.
Hundreds of Canadians attended the event, including women from Montreal.