You can find a complete list of Museums on Us participants here. Search by city or zip code, whichever is easier. On that list, you'll also see a designation of "Saturdays only" or "Sundays only". Sometimes, a participating institution will only participate one of the two days of the weekend, and that will be noted. If there's no notation, it means the museum participates on both days. If you're in Wilmington, NC like I am, the Cameron Arts Museum is a participating museum. And, if you want to go where we've been, the Albin Polasek Museum & Sculpture Gardens in Winter Park, Florida and the Tacoma Art Museum in Tacoma, Washington are on the list. It also includes Liberty Science Center in Jersey City, New Jersey (which is so fun for kids but can definitely get expensive, so this is a great deal for that museum).