San Francisco is a top city to explore on foot. But doing so on your own can mean missing out on the rich history and lore it's famous for. That’s where San Francisco City Guides comes in. This nonprofit organizes a variety of free daily walking tours led by local volunteers. Each centers on a neighborhood or a theme, such as “Alfred Hitchcock’s San Francisco” or “Ghost Walk at City Hall.” Guides recount stories, relay historical facts, and point out architectural details to bring the city’s diverse districts to life. Some tours are offered year-round and others are seasonal, so check the group’s website for availability. Reservations aren’t required; just show up at the time and place shown on the schedule.