Marchers from all over the country brought with them a diversity of visual protest - thousands and thousands of signs.
Many lambasted Trump for his demeaning views of women, circa 2005, that The Washington Post exposed in October 2016, namely his view that, as a celebrity, he can "Grab 'em by the p---y. You can do anything."
Others brought up issues related to women's rights, civil rights, and more acute policy issues, such as the Trump administration's positions on environmental conservation and climate change.
Here are just a few dozen signs we photographed among the masses on January 21, 2017.