As far as Pasadena goes, Theres some nice slightly curved ledges at this school a few blocks from my house, best part is no fence to jump. 5 star and rail near by that one.Ledge at filmore train stop. Theres a tall ass hubba at the convention center, the police station and city hall look like a spot (though ive never tried). Villa Park is a spot. Thats all I can think of off the top of my head.
To me Caltech looks like a bust. I see ledges in the campus but to me it look like people started to get it going, but get kicked before they could get them fully "grinded down",
Strangely enough while driving through an alley I seen a covered mini ramp behind this building, I drive around in front to see what it is, its a law office...
I do usually save pins, but I think most of those are just in my head.