The World's Only Global Musical Instrument Museum. Home of the MIM Music Theater--a 300-seat acoustically superb performance space--as well as the award-winning Café Allegro (open 11 am - 2 pm daily) and the MIM Museum Store. The average guest spends nearly four hours at MIM. Please allow plenty of time to fully enjoy MIM's galleries and exhibits. Open daily, 9 am - 5 pm; Closed Thanksgiving; Open Christmas, 11 am - 5 pm. General Admission: NULL; Teens (ages 13-19): NULL; Children (ages 4-12): NULL; Children 3 and under: Free. Hours and prices are subject to change.