The Mill Museum mounts several temporary exhibit a year. Our current exhibit, running from Dec. 14 through Jan. 5, is our annual holiday celebration, “Trains, Toys, and Trees,” featuring operating model trains in several scales, antique toys, and a wonderland of holiday decorations. The exhibit will be open Fridays, Saturdays, and Sundays during the Museum’s regular visitor hours, but the train enthusiasts will have the trains running only on Saturdays and Sundays, Dec. 14, 15; 21, 22; 28, 29; and Jan. 4, 5, from 10 a.m. to 4 p.m. Included in the Museum’s regular admission price.