Tcho, San Francisco

Certainly one of the sexier chocolate makers in San Francisco's cocoa trade, TCHO on Pier 17 also offers twice-daily free tours that help chocolate aficionados fall even more madly in love with their sweet of choice. Pronounced "cho," this waterfront eatery makes for a perfect afternoon stop off while perusing the area, or as a quick-service swing-through spot to pick up all your dark chocolate needs for later. And apart from manufacturing the most refined artisanal cocoa nibs out there, TCHO's facility is one fine-smelling factory; to experience it yourself, just don a hair net and take the TCHO tour, just down the Embarcadero.