I actually was in Durham for DjangoCon US a couple of times. One year I was on the fence about making a quick trip to Raleigh before my flight and that factory was one on my list. It was a very rainy day, and I was pretty tired. I decided not to go. Hopefully, I will make it back sometime. Maybe for All Things Open, which is on my bucket list.
The island of Kaua'i in Hawaii has both tours of a chocolate farm (Lydgate Farms) and a coffee plantation (Kaua'i Coffee) with a visitor center. Just gotta find a conference out there, then hop on a Southwest flight.