No, granaries isn’t a misspelling. When I first typed the word I spelled it graineries. The spell check God objected and told me the proper spelling is granaries. It’s pronounced as I spelled it the first time. Just another one of those strange English words.
Earlier this year, on two of our short Ohio/Indiana/Michigan road trips, I photographed two granaries that I thought were quite interesting. Hopefully, you find them interesting too.