'Invented in San Francisco' Walking Tour

San Francisco's creative nature inspired innovation long before the silicon chip: Some of the world's most influential inventions were dreamed up by San Franciscan tinkerers. Explore seven surprising stories of innovation-from tech to tunes to treats-that exemplify San Francisco as a hotbed of creative thinking for nearly two centuries. We'll investigate the science behind some of these inventions, stroll to stellar views and historic neighborhoods, and test our own powers of perception.

2.3 miles, moderate with 1 challenging uphill, 2.5 hours