The Geofront, bathed in the colors of the setting sun.
Misato (OFF):“The key to rebuilding the world, this place has become a fortress for the human race.”
MDWigs: The Geofront is a sphere with a diameter of 13.75 km). However, 89% of it is buried and only the top part (900 m high and 6 km across) is open. I'm not sure if those figures are internally consistent; using geometry, you can work out if a sphere with a diameter of 13.75 km can be intersected to produce a top section 6 km across and 900 m high, and that could also be checked with the 89% figure.
Mr. Tines: The figures aren't at all consistent, I'm afraid. See More.