Cities of Tomorrow introduced MegaTowers, which have many different segments which can be built.
So far I know these:
LW Residential: 800 workers, 400 shoppers and 200 students. 800 cost per hour, 1200 rent per hour T1 Office: 1200 LW, 400 MW and 100 HW workers. 900 cost per hour, 1900 rent per hour. (no pollution, no freight, immune to techpoints)
I'm mainly interested in residential agent counts, goods counts, worker counts, cost and max rent per hour, and power consumption (in 10's of power units). My theory is that these buildings pay less in rent and take more in power than equivalent original RCI would pay in tax.