A few years old, but still great.
Innovation HQ, buried into the side of a volcano and surround by Forest, is a place of much research, with lots of cake related experiments.
Of course, the HQ has a cover building were the workers can enter and to direct attention away from the main building, and it appears to be a regular office building. Some people ask why it is situated in such an odd and isolated location. Unfortunatly, those people dont tend to live long.