On a recent trip to my in-law's place in North Jersey, we spent the day at the Liberty Science Center, which is quite a fun little museum. Being so new, absolutely everything in there is hands-on, and there are several fun learning exhibits. Jules spent quite some time working out math puzzles—she and her grampa like doing the sudoku puzzles together.
I enjoyed the alternative energy room where we got to play around with solar, wind, and water power. We're hoping to pull together a small portable solar station to run our well pump during power outages, among other things. I also loved the huge Hoberman sphere in the lobby.
Sam really liked the balloon wall and the Eat and Be Eaten room with all the insects and animals. Em just loved being there and exploring everything! Another highlight was the observation deck where we got to see the Statue of Liberty. Just doesn't get cooler than that!