Post your guesses in the comments section below.
Guess correctly and be crowned "San Lorenzo know-it-all" for the week.
Congratulations to for correctly guessing . The sharp-looking structure is found at the top of off Lewelling Boulevard.
Find out what's happening in Castro Valleyfor free with the latest updates from Patch.
Have your own photos around town that you'd like featured in Castro Valley Patch's photo challenge? Send them to analisa.harangozo@patch.com and see if you can stump our readers!
Get more local news delivered straight to your inbox. Sign up for free Patch newsletters and alerts.
