Not Shadowrun, but kinda related and interesting...
Back when they still had money, Dubai had been planning to build
the Al Burj Tower in the center of the
Palm Jumeirah Island project. When completed it would have had a height of 1200 meters, about 30% taller than the current world record holder, the Burj Khalifa.
I was part of the early stage planning teams. The structure was so tall that new concrete technologies would have to be invented to withstand all the compressive and shear stresses that would have been placed on the structure. The building had apartments, movie theatres, shopping malls, fitness centers, schools, and it's own fire and police departments. Even 10 huge open air garden decks spaced evenly along the height of the building. Basically an arcology.
I remember being curious about why several rooms were "blacked out" in the plans. They had heavily reinforced walls, and independent water and power supplies. They were also strategically placed on the corners of the building every dozen or so floors. When I asked about them, my boss told me he didn't know what they were for, but he'd been told not to ask too many questions about them when HE inquired further up the chain.
Speculation was pretty rampant in my group, but I think the most popular theory was that they were to house anti-aircraft equipment.
-k