I assume there are large openings in each dome to walk through? It doesn't seem like it would have doors but that's just me. Most of the holes in the domes are very small, right? You can see through the walls but not pass through them from what I picture.

[quote=@Vordak]
and is lit either by sunlight, passing through an opening on the very top, covered by glass
[/quote]

However, this makes it seem like the domes are blocking a lot of the light if the light only comes in from the top where glass is.