Not sure where you are headed, but there is some interesting stuff here in Cali.
Here are a few worth considering....
Morro Bay... there is some big retail with the iconic Morro Bay rock and possibly the power station in the background.http://www.frontstreetinn.net/fsiimages/plant.jpg
Interesting off market or abandoned retail in the Salton sea area
They are building/renovating a retail area in Malibu with big nature in the background
You might find this website interesting to see it there is any interesting coastline retail like marine gas stations etc..http://www.californiacoastline.org/
arial photos of the entire Cali coast, military sites excluded.
Backersfield and lake isabella is interesting too.