In today’s terms, that means New Jerusalem will be about 1,500 miles wide, 1,500 miles long, and 1,500 miles high. That’s more than 2 million square miles on the first “floor” alone! And given that this city is cubical and rises far beyond the stratosphere (the stratosphere starts about eleven miles above the surface of the earth; New Jerusalem ascends to 1,500 miles), we can assume that in some way it will have more than one level. There will be vertical elements to it.