Sutopia, Ch 31
It was a strange mega-structure and he realized it would take time for his brain to get used to navigation aboard l4.
Rebirth
It was some sort of mega structure in the shape of an dome that seemed to span over one hundred thousand kilometers in diameter. what's most troubling is the fact we can't go anywhere near the damn thing without getting burn to a crisp.
Starfox: Needin' Some Lovin' Ch 9
And also in orbit around the planet was a giant ring shaped mega-structure. "that must be the halo weapon," observed fox. "look at the size of that thing!" said slippy in amazement. "approximately 10,000 kilometers in diameter."
The Big Sister Part Seven: Genesis of A Monster.
While it would be an agonizing path down the stairs, it was perhaps her only way to get to the lower levels of the mega-structure.
The SSS-G Project, a short story
1031_ ** _ leaning against the window, with my eyes dead on the driving mega structure that made it's way towards mars.