Edges not visible in Blender rendering

Created by: theworldisnotflat

I have exported China time-space to OBJ file, opened it in Blender When I render from Blender edges seem invisible! the Blender file is here: https://filesender.renater.fr/?s=download&token=311c9540-3b8b-a469-744f-4ce7b3d94f5d