Our love for TCHO, SF's own high-tech Willy Wonka operation that goes down on Pier 17, is certainly no secret. We've blogged about their sustainable sourcing practices, their Bay Area technology roots (its founders are Wired pioneers Louis Rossetto and Jane Metcalfe) and even their hot chocolate recipe.

And now you can check out all the choco-magic yourself with their recently announced twice-daily tours. Hello, kid's field trips! To get an idea of what wonder awaits, check out this behind-the-factory-lines video from NBC's The Feast.