In honor and remembrance of the heroes of September 11, 2001, symbolically complete their heroic journey by climbing 2,071 stairs, representing the 110 floors of the Twin Towers. This is an individual challenge that you can complete on your own time frame between September 4th and September 11th. Once you complete registration you will receive a confirmation e-mail with a link to a form where you can report your challenge completed. Each participant that completes the 2,071-stair challenge will receive a commemorative sticker.