These Are The Most Powerful Photos From The Student Walkouts

Lucia Parrish-Katz of Montgomery Blair High School joins with other students walking out of classes in Washington, DC.

Students from Fiorello H. LaGuardia High School sit and lie down on West 62nd Street in Manhattan.

Students from Harvest Collegiate High School form a circle around the fountain in Washington Square Park in New York City.

Students from Park High School and Sleeping Giant Middle School hold hands and read the names of the 17 students and teachers killed in Parkland, Florida.

Students from Fiorello H. LaGuardia High School lie down in protest in New York City.

Students from Marjory Stoneman Douglas High School and Westglades Middle School gather near memorials at a nearby park where they marched to honor the 17 students and staff members killed at the school in Parkland, Florida.

Students marching from Marjory Stoneman Douglas High School and Westglades Middle School cry together as they stand next to a memorial in honor of the 17 students and staff members killed at the school in Parkland, Florida.

Columbine High School student Andrew Pavicich ties a memorial ribbon on the fence outside the school.

Thousands of local students sit in front of the White House for 17 minutes in honor of the 17 students killed last month in a high school shooting in Florida.

Bethesda-Chevy Chase High School students Alia Berry-Drobnick and Sam Blank gather with other students outside the White House.

Students release 17 white doves outside Crescenta Valley High School in La Crescenta, California.

Students at Yarmouth High School participate in a walkout in Yarmouth, Maine.

Students fill the grounds outside Montclair High School during a walkout in Montclair, New Jersey.

Joined by Gov. Andrew Cuomo, students from surrounding schools gather at Zuccotti Park in New York City.

Sen. Bernie Sanders greets students at a rally on the west front of the Capitol in Washington, DC.

Boston-area students march to the statehouse.

Students at the Baltimore Polytechnic Institute stage a lie-in for 17 minutes.

Students embrace as they gather on their soccer field during a 17-minute walkout at the Stivers School for the Arts in Dayton, Ohio.

Students wear #ENOUGH pins as they gather on their soccer field in Dayton, Ohio.

Students from Millennium High School release balloons to honor the victims of the Marjory Stoneman Douglas High School shooting during a walkout in Manhattan.