While it’s hard to miss the Mark Twain, with its signature steam whistle, as you walk through the west side of Disneyland, many people don’t know it houses one of my favorite “hidden gem” experiences at Disneyland.  Like most of the Disneyland’s hidden gems, this one is “hidden” in plain sight. The Wheelhouse of the Mark Twain is a very unique way to experience a Disneyland Attraction: from the vantage of the ride operator!  For most rides at Disneyland, you’re not allowed to peek behind the curtain and see a bit of how the attraction works.  On the Mark Twain, the wheelhouse provides you with not only the opportunity to…