My husband and I came here after visiting USS Pampanito. There is no ticket to the Machinery Museum, but there is an additional fee for playing arcade games. The novelty of this special attraction is unique, because it is very interesting to see that you can play old arcade games. But we didn't impress me too much when we visited the Machinery Museum. There are too many people here. If you like to play classic arcade games, you can go to the Pacific Marbles Museum in Alameda for a fun.