The Indyhall, based in 20 North 3rd Street in Old City Philadelphia, Pennsylvania, is a meeting & (un)conference. It can inspire other space creators who want to boost exchange between diverse people, learning & personal development.
http://www.indyhall.org/♥ Thanks to Jonathan Imme (ji@ignore-gravity.com) for adding this space
IndyHall is known for its excellent community building. They make the community an essential part of the existence of IndyHall.