"It used to be the feature of an amusement park, but the park failed and nobody ever removed the paddle-wheeler."
"(Earlier prototypes were weirder still: one that resembled a flying paddle-wheeler never managed to leave the ground.)"
"It's well known that Disneyland's Mark Twain paddle-wheeler sank on its opening day, but it wasn't until Friday's first-hand report of the sinking of the Mark Twain that the facts were in the public record."