Something that popped up here in Southern AZ. http://www.aztac.org/documents/September-11_Tower-Run.pdf "This is a 17 story building with two stairwells. Runners will run, walk, climb, or crawl from the bottom of the building to the top, six and half times. This is the equivalent of 110 stories which is equal to the height of the World Trade Center. Participation is restricted to certified local and federal law enforcements officers and fire personnel....Due to building restraints the event will be limited to only the first 100 registered participants. Registration is free but all participants are encouraged to obtain pledges and donations which will be donated to The Wounded Warrior Project. The goal is to have each participant raise $100 through pledges or donations." I'm not involved, but it's a worthy memorial for a worthy cause for anyone down this direction.