Post your guesses in the comments section below.
Guess correctly and be crowned "Castro Valley know-it-all" for the week.
Congratulations to for being the first to correctly guess . The eight ball is part of bar sign on Lake Chabot Road across from .
Have your own photos around town that you'd like featured in our Castro Valley photo challenge? Send them to firstname.lastname@example.org and see if you can stump our readers!