If you didn't inspect twice,you would think that this residence is just someone's garage. Tucked unassumingly on residential Waller Street (one block absent from the bustling Upper Haight), Free Gold Watch is one of the few arcades in San Francisco featuring more than 30 different machines as well as a screenprinting shop in the back. It claims to be the largest city's largest pinball arcade.
Source: atlasobscura.com