sentences:  The city has the largest Victorian era home district in the state of Alabama.Decatur is also home to Alabama's oldest opera house, the Cotaco Opera House, which still stands on Johnston Street.In the past, its industries included repair shops of the Louisville and Nashville Railroad, car works, engine works, bottling plants, and manufacturers of lumber, sashes and blinds, tannic acid, fertilizers, cigars, flour, cottonseed oil, and various other products.