Historic Downtown Iowa City Buildings 1 – Blackstone Building 118 S. Dubuque St. c. 1882, Italianate Originally a two story carriage and harness manufacturing shop, the third story Mansard roof was added sometime in the late 1880s. A number of businesses have been located in this building including hardware stores, theaters, confectioner, cleaning and pressing… Continue reading Historic Downtown Iowa City Buildings Map Guide Directory Tour