|Model World Layout 2016|
“Continent Sized Rotating Space Habitats” is an interesting video from Isaac Arthur, posted July 2020, and it follows up on earlier videos about O’Neill Cylinders.
Arthur discusses structures like the Topopolis, the MesoCylinder, the MkKendree Cylnder, and Banks Orbital.
He suggests the use of graphene as a structural material for very large space habitats with their own internal “geography” and nations or politics. In some cases, a “Nile River” waterway through the torus would be desirable politically.
He mentions David Niven’s “Ringworld”.