There is an Indian story — at least I heard it as an Indian story — about an Englishman who, having been told that the world rested on a platform which rested on the back of an elephant which rested in turn on the back of a turtle, asked (perhaps he was an ethnographer; it is the way they behave), what did the turtle rest on? Another turtle. And that turtle? ‘Ah, Sahib, after that it is turtles all the way down
