Post your guesses in the comments section below.
Guess correctly and be crowned "San Lorenzo know-it-all" for the week.
Congratulations to for being the first to correctly guess last week's photo challenge. The business hours belong to Inspire Hair, located at 15824 Hesperian Blvd.
Have your own photos around town that you'd like featured in Castro Valley Patch's photo challenge? Send them to firstname.lastname@example.org and see if you can stump our readers!