The Ferry Building--once a high-volume transit point with more than 50 million passengers a year--is one of the best known foodie destinations in America. Inside the building proper you'll find gourmet stores selling artisanal cheese, charcuterie, smoked fish, fresh bread and confections, as well as a few high-end restaurants. On Tuesdays and Saturdays, a farmer's market overflows onto the plaza, where over 100 vendors set up shop with prepared foods and specialty produce. If you love food, this is a can't-be-missed opportunity to taste some of the best San Francisco has to offer.