The two towers.
The one on left is 1.5 meters high.( or 60 inch )
It holds about 3000 pieces and took 6.2 hours to build.
And the newest one is on the right.
It's a bit smaller 1.25 meters ( 50 inch ) but it's made out of 5000 pieces and took 8.5 hours to build
actually it's an octagonal building ( i mean it has 8 sides :) )
Both are office buildings with road access and monorail stations as well as helipads.