Peavey–Haglin Experimental Concrete Grain Elevator
Peavey–Haglin Experimental Concrete Grain Elevator is the world's first known cylindrical concrete grain elevator. It was built from 1899 to 1900 in St. Louis Park, Minnesota, United States, as an experiment to prove the design was viable. It was an improvement on wooden elevators that were continually at risk for catching fire or even exploding. Its cylindrical concrete design became the industry standard in the United States, revolutionizing grain storage practices. After its initial experiments, the Peavey–Haglin Elevator was never again used to store grain. -from Wikipedia
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