We are going to The City for a long weekend. We have a reservation at a big name restaurant for Saturday night, but I need some fresh ideas for the rest of the time. The symphony and opera don't have interesting offerings for the weekend and it's hard to drag DH shopping. We'll also be meeting up with one of his friends who is visiting from Japan. She is a big Americanophile and has been to SF for a short visit in the past, but still would probably like to do the tourist thing somewhat. Help!