This was one of the saddest episodes of This American Life that I can remember listening to. Act One in particular is what struck me most as fascinating. It's about a phone booth in rural Japan that attracts many people to it because it acts as a sort of comforting communication device to the dead. The phone isn't connected to anything at all, yet it offers relief to those who may be seeking answers from the afterlife (especially those who have lost loved ones in the 2011 tsunami).