A square or portion of a city or town inclosed by streets, whether partially or wholly occupied by buildings or containing only vacant lots. Ottawa v. Barney, 10 Kan. 270; Fraser v. Ott, 95 Cal. 061, 30 Pac. 793; State v. Deffes, 44 La. Ann. 104, 10 South. 597; Todd v. Railroad Co., 78 111. 530; Harrison v. People, 195 111. 406, 63 N. E. 191.