I believe a couple years back these buildings were referred to in Sim City as 'Arcologies'... As in a building so fantastical in it's perfection, essentially it was free to sustain itself internally without any outside interference... (give or take a few power lines
)...

But apparently what was once sci-fi/fantasy seems to quickly be emerging as realistic possibilities in that desert playground some refer to as Dubai
.
A structure so perfect not only can it ecologically sustain itself, but it can house offices, hotels, living quarters, restaurants, and shopping centers. They've dubbed it the Technosphere... But I'd like to call it Epcot Center re-imagined 
