One World Trade Center’s spire lit orange to commemorate March for Our Lives

In the nearly four years since it opened, One World Trade Center—namely, its spire—has served as a beacon used to show New York’s support of various causes; it’s been lit in green to support the Paris climate accord, a rainbow to support NYC Pride, and more. (It’s also, very occasionally, available for New Yorkers to play with via the Spireworks app.)

And after today’s March for Our Lives, which brought thousands of New Yorkers out to the streets of the Upper West Side and Midtown to advocate for gun control, One WTC’s spire will be lit orange in support of the movement and those who marched. The color orange was first used as a symbol for the movement after the 2013 death of Hadiya Pendleton, who was killed in Chicago in 2013.

Governor Andrew Cuomo, who marched in New York City today, tweeted about One WTC this evening, adding, “tomorrow, let’s carry forward the spirit and activism we saw on our streets today and change the world.”

The spire is 408 feet tall and is a large part of how One WTC was able to claim its designation of the tallest building in New York City.