sentences:  In Illinois, at least one round barn was built with direct inspiration from the U of I round barns.The first barn was built around 1907 or 1908 and was known as the Twenty Acre Dairy Barn; it was erected at a cost of US$3,200.The 1910 Dairy Horse Barn set the university back an additional $2,000 and the 1912 Dairy Experiment Barn was the most expensive at $11,000.