Dwight drew national attention through the Keeley Institute, founded by Leslie Keeley in 1879 as the first institution to treat alcohol addiction as a disease rather than a vice. As the institute grew in popularity, the village became known as a model village with paved streets, electric lights, and refined buildings, and at its peak 800 patients arrived by train each week while more than 200 branches operated in the U.S. and Europe. The famous Keeley Cure, reputedly gold chloride injections, was never accepted by the mainstream medical community. The Keeley building’s stained glass five senses windows, created by Louis Millet, a collaborator of architect Louis Sullivan, reflected the institute’s holistic approach to treatment. Dwight’s development was also shaped by the Chicago and Alton Railroad, which laid out the village in 1854 around a depot ground between two main streets; when the town expanded, Henry Ives Cobb designed a new Richardson Romanesque station in 1891. Other notable landmarks include the 110-foot Dwight Windmill, built in 1896 to supply water to the Oughton Estate, and the First National Bank, built in 1905 on West Main and designed by Frank Lloyd Wright, the only one of his three bank designs still in existence.