etting around in San Francisco is best done on foot. I caught these impressions of my favorite city in the world (I lived there for five years) on foot one overcast day last week. Rain. Chinatown. The way that Chinatown melds into North Beach on Stockton Ave. The smell of cannoli and espresso. The gold deco office building at 450 Sutter where my grandfather and uncle used to have their medical practice. The windows at Gumps that I remember my grandmother showing me. My city.