They have never seen the Sun, nor the planets, nor all the other countless suns which star the skies by night.

It is all very confusing to one who wishes to go places on the surface of Amtor and must depend upon an Amtorian map, and it seems quite silly but then one must bear in mind the fact that these people have never seen the heavens because of the cloud envelopes which enshroud the planet. Where actually the parallels of longitude converge toward the pole, their conception would be that they converged toward the Equator, or the center of their saucer, and that they were farthest apart at the periphery of the saucer. You may readily perceive how this distorts their conception of actual conditions and is reflected in maps, which are, to say the least, weird. They also believe that Karbol (Cold Country) lies at the periphery of their saucer whereas it is, as a matter of fact, the Antarctic region surrounding the south pole of Venus. This seems quite evident to them, for how else might the spewing of lava from the craters of volcanoes be explained? They believe that Amtor, as they call it, is shaped like a saucer and floats upon a sea of molten rock. Of course there is no good map of Venus, at least none that I ever have seen because the scientists of the southern hemisphere of the planet, the hemisphere to which Chance carried my rocket ship, have an erroneous conception of the shape of their world. On Anlap lies Korva, the friendly country toward which I pointed the nose of our plane. If you will look at any good map of Venus you will see that the land mass called Anlap lies northwest of the island of Vepaja, from which Duare and I had just escaped.

Escape on Venus by Edgar Rice Burroughs