Cool event on Saturday for lovers of the city and its roots: MYhistoricLA, the public kickoff to SurveyLA, the first-ever comprehensive survey of L.A.'s historic buildings and resources. Time constraints forced me to drop my invited part in SurveyLA early on, but teams of researchers, historians, architects and other experts have culled heaps of information to design the survey. Now it's up to the public to feed in ideas. Details will be available at the Central Library on Saturday from 11 a.m. to 4 p.m., and KPCC's Larry Mantle will lead a panel discussion at 1 p.m.

While you're downtown: The event coincides with the final day of Postopolis, "near-continuous conversation about architecture, art, urbanism, landscape, and design" hosted at The Standard by six blogs from beyond L.A. Postopolis in turn is in conjunction with Los Angeles Art Weekend, with events in many areas of the city.