Take a tour through time and trace the inner workings of Maui's sugar mill. Never-displayed photos of the mill's interior highlight the Alexander & Baldwin Sugar Museum exhibition, "Mills, Machinery & Locomotives,"?which runs through January. Survey the artifacts and photos of Kahului Railroad Company to catch a glimpse of how these powerful steam locomotives were essential to early mill operations. Don't miss artist Tom Sewell's video, "Enigma of the Mill," a piece that turns mill operations into operatic art set to dramatic music. "Mills, Machinery and Locomotives" is on display from 9:30 a.m. to 4:30 p.m. Monday through Sunday at the museum, 3957 Hansen Road, Puunene. Entry is $7. For details, call 871-8058 or visit www.sugarmuseum. com.