Don't miss Milwaukee's ultimate art weekend with galleries to discover and shops to browse! For over 30 years, Gallery Night and Day has been Milwaukee's two-day premier art event for both experienced art connoisseurs and beginning admirers. Venues set their own hours for the event, so be sure to check with specific venues for event details. January 17 - 18, April 11 - 12, July 18 - 19, October 17 - 18. Generally Friday 5pm - 9pm, Saturday 10am - 4pm, FREE.