My son wanted to take a tour of the #2 Turret on the Battleship New Jersey. This turret tour is the only one in the country, I think. It was a great time. My son and daughter loved it and learned alot.
The guided tour was about 90+ minutes and we actually went down 5 decks / levels to get to the powder room. It was very hands on. The kids got to load the "110 Pound" powder bags and in the end they got to pull the simulator trigger and "fire" the big 16 inch guns.
After the guided tour was over, they both wanted to go back on and take the topside tour and explore the ship on our own.
My son said he wanted to "close the place" so we did...We were on it (this time) for about 6 hours. This was our 6th visit to the USS New Jersey, and the kids want me to take them back again.
Great thing to do with kids to teach them about WW2 and stuff like that.