I got the idea to merge Technic Lego elements into a building. This is the result. It took me between 10 and 15 hours to design, build and finish. as you can see it has no floors. I didn’t intend it to be functional to play with minifigs.
Length: 421 milllimetres or 54 lego-pins
Width: 421 millimetres or 54 lego-pins
Height: 531 millimetres or 59 stacked bricks