Donors to the shoe monument include actresses Susan Sarandon and Bette Midler, and talk show host Chelsea Handler.
Activists install 7000 shoes on the lawn in front of the U.S. Capitol on Capitol Hill in Washington, U.S. March 13, 2018.
A stark reminder and memorial to the children's lives lost to gun violence was spread out on the U.S. Capitol lawn on Tuesday, a sight that prompted passersby and tourists to take photos of an unsettling scene.
"I'll travel to D.C. literally wearing my son Daniel's shoes, the ones he wore the day he died at Columbine", said Tom Mauser. Once the display is over, the shoes will be donated to homeless shelters across the US.
Shoes were donated by celebrities, family members of gun violence victims and American citizens from across the country. She said open access to weapons is "giving power to trembling hands".
The event was planned by Avaaz, an global advocacy group, that has done similar events before. Her daughter survived the shooting.
Dozens of colleges and universities across the country, including at least three Ivy League schools, have said their application processes will not consider disciplinary action taken against high school students who engage in protests.
Civic organization Avaaz, the National School Walkout, and other gun control activists chose to represent this issue in plain sight, in a way lawmakers couldn't avoid.
Tuesday's memorial comes just one day before thousands of students are expected to walk out of their classrooms to protest gun violence in an event dubbed the #Enough National School Walkout.
It comes nearly a month after 17 people were killed in the mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida.
And, on March 24, there will be another large demonstration against gun violence.