Here's a look at what's going on Tuesday in the Colorado Springs area: HALLOWEEN/FALL FESTIVAL EVENTS Through Oct. 29: Corn Maze and Dead Zone Scream Park — Denver Botanic Gardens Chatfield, 8500 W. Deer Creek Canyon Road, Littleton. Info: botanicgardens.org. Through Oct. 31: “Terror on Tejon Street” — A 21+ live horror show in the Mezzanine, VR Terror Tours and more, Tejon Street.