Orignally my city was going to be a stacked city but it soon morphed into a hanging city where the richer people live closer to the bottom due to the fact that thier houses are heavier but this was also a punishment for the land below is polluted. I started my project with sketches and soon I prototyped my city center out of cardboard before proceeding to make it out of wood. Assesing what I did wrong I then rebuilt my final version of it along with building the houses, gears, and city frame. Finally I assembled it all in a way that the gears make the houses go up and down.