San Francisco's Chinatown is the oldest and one of the largest Chinatowns in North America. Rainy afternoons provide a perfect opportunity to explore this vibrant neighborhood. Wander through the bustling streets, visit traditional Chinese shops, and indulge in delicious dim sum or other authentic cuisine. You can also explore the ornate temples, browse the unique souvenir shops, or simply soak in the rich cultural atmosphere of this historic district.