Cambridgeport Mass has been doing “If This House Could Talk” events for years now — here are some pictures and background to get a feel for the event
http://communicatingacrossboundariesblog.com/2011/10/04/if-this-house-could-talk-a-cambridgeport-tradition/
a map of all the homes that participate:
http://www.cambridgehistory.org/ifthishouse
and more info about what we are trying to do: