I believe the ancient Flat Earth model of described in the Book of Enoch is correct. Strictly speaking, the Earth consists of the Afro-Eurasian landmass. Jerusalem is literally the geographical centre of the earth. Those three continents are the earth surrounded by an outer ocean. North and South America are hyperborea and Atlantis, respectively. These two as well as Australia and Greenland are but islands in the outer ocean which is surrounded by an outer earth on four edges. The four walls of heaven rest on these four edges with a dome on top.
The Book of Enoch was ruled out of the Bible at the Synod of Laodicea in A.D. 378, and I agree with that decision. It is an ancient book that people had corrupted, and the extant copy was not precisely identical with what Enoch himself had originally written. That does not mean the book is not useful or does not contain important knowledge. The Orthodox Church has high standards for what is considered holy scripture and the volume they had failed the test. In my opinion, people who condemn the Church for that reason indicate only their own lack of sagacity.
I like the first century A.D. cosmological tract ascribed to Dionysios the Areopagite as well as the ‘Christian Topography’ by Cosmas Indicipleustes. While I generally follow the model of Cosmas Indicopleustes, I think Rowbotham’s book forms an important supplement. For example, the measurements of the distance of the sun as 700 miles away in Rowbotham’s Book are closer to the truth than Cosmas’s estimate of the sun as roughly a third the size of the earth.