Description

Hundreds of active and retired first responders, military members, public-safety supporters and Valley residents will climb 2,071 stairs beginning at 8 a.m. at Gila River Arena. The climb honors first responders who lost their lives at the World Trade Center on 9/11 and recognizes those who continue to protect us from foreign and domestic threats. Photos of fallen heroes will line the stairs. Proceeds benefit the 100 Club of Arizona and Fighter Country Partnership. Children may participate in an alternate course. $35-$40. Gila River Arena, 9400 W. Maryland Ave., Glendale. 911towerchallengefoundation.org

Did you know: There were 110 floors and 2,071 steps in each of the Twin Towers when the buildings collapsed.