My wife and I are travelling to San Francisco in April and would like recommendations of must see places or experiences we should not miss. We have booked Alcatraz and looking forward to photographing the bridge. I would also like to try American BBQ for the first time if possible and possibly catch an A's game as the Giants are not at home the week we are there. Would it be worth going to an A's game? We are staying in Union Square.. any advice would be great.