Recycling Churches

beliefnet
Don't forget performance spaces and restaurants.  I know of a few churches, still conducting services for a handful of parishioners to keep their tax deduction that are prime concert venues.  Others have revamped their service to appeal to the SNBR and basically are run by a minister, a custodian, and a booking agent.  A trend I highly approve of as an Indie performer. 

Many SNBRs like the Sunday Country Club and will support a church that doesn't demand compliance with doctrine and/or bigotry.  On any Church Street you will find several places where you will feel quite comfortable as an atheist (if you like that kind of stuff and can put up with references to the Greater Being.)  They will even host your Celebration of Life and cater the party afterward at very competitive rates compared to a commercial venue.