Masses of people flooded parks, streets and city squares around the world Saturday marching in solidarity in a show of empowerment and a stand against President Donald Trump.

The crowds of women, men and children stood in the rain, snow and sun. Many wore pink “pussyhats” to mock the new president.

As they moved through streets or gathered in parks, they voiced support for women and immigrants’ rights, health care, Black Lives Matter, education and other causes. Many carried signs with messages such as “Love trumps hate” and “Women won’t back down.”

Parts of some cities were brought to a halt as marchers packed train stations and snarled traffic. In Washington, turnout was so big that the designated march route alongside the National Mall was impassable.

Here are some of the images of the day in the U.S. and around the world.

Protesters carry signs as they march along the street at the Women’s Protest against President Donald Trump Saturday, Jan. 21, 2017, in Los Angeles. The march was held in in conjunction with with similar events taking place around the nation following the inauguration of Trump. (AP Photo/Jae C. Hong)

Cindy Campbell and Tracy Lamb embrace during a Women’s March and protest at the Town Square in Jackson, Wyo. Several hundred people participated in the march. (Bradly J. Boner/Jackson Hole News & Guide via AP)

Marchers numbering in the thousands arrive at the Seattle Center and in view of the Space Needle in Seattle. (AP Photo/Elaine Thompson)

A crowd fills Independence Avenue during the Women’s March on Washington. (AP Photo/Alex Brandon)

Thousands attend the Women’s March Indianapolis rally, a sister rally of the Women’s March on Washington, on the west side of the Indiana Statehouse in Indianapolis. ( Mykal McEldowney/The Indianapolis Star via AP)

A young woman holds up a sign reading in Spanish “Respect for our Mexico, and Mexican immigrants,” during a Women’s March protest in front of the U.S. embassy in Mexico City. Several hundred people, many of them Americans, shut down four lanes of a major Mexico City boulevard as they protested in front of the U.S. embassy in solidarity with the Women’s March on Washington. (AP Photo/Rebecca Blackwell)

Thousands of demonstrators march in support of the Women’s March on Washington on Saturday in Phoenix. (AP Photo/Ross D. Franklin)

Madonna performs during the Women’s March on Washington. (AP Photo/Jose Luis Magana)

Sen Elizabeth Warren addresses the crowd as she is flanked by Se. Ed Markey, left, and Boston Mayor Marty Walsh during a Women’s March in Boston. (John Tlumacki/The Boston Globe via AP)

Demonstrators march a Women’s March rally on Saturday in Atlanta. (AP Photo/John Bazemore)

Tai Simpson from the Nez Perce Tribe in Lapwai, Idaho unites as supporters gather at the steps if the Idaho Statehouse for the Women’s March on Idaho in Boise. (Darin Oswald/Idaho Statesman via AP)

Protesters protest newly inaugurated President Donald Trump during a women’s march on Saturday in Chicago. (AP Photo/Paul Beaty)

Protesters gather for the Women’s March on Washington during the first full day of Donald Trump’s presidency. (AP Photo/Jose Luis Magana)

Protesters march during a Women’s March on Cleveland. (Thomas Ondrey/The Plain Dealer via AP)

Protesters walk across Constitution Avenue near the White House for the Women’s March on Washington. (AP Photo/John Minchillo)

Crowds gather on Jackson Boulevard for the Women’s March On Chicago. (John J. Kim/Chicago Tribune via AP)

Demonstrators march across 42nd Street during a women’s march in New York. (AP Photo/Mary Altaffer)

Demonstrators take part in the Women’s March in Trafalgar Square in central London. (AP Photo/Tim Ireland)

Protesters carrying banners and placards take part in a Women’s March next to the Eiffel Tower, in Paris, France. (AP Photo/Christophe Ena)

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