There are some beautiful images of this fantasy city, a 2007 personal project of visualizer Jesse van Dijk, at the artist’s portfolio. Van Dijk writes about this wondrous city where daylight is something only the rich can afford:
My principle idea for this city came down to a (somewhat) harmonious society with huge differences in standards of living. Because flat ground is so expensive, only the super-rich can afford to live on top of the pillar, where the climate is nice and sun-hours are plentiful.
As one descends into the pit, the hours the houses are exposed to direct sunlight daily decrease, making house prices lower, which is why the poorest groups of society live at the bottom of the pit. However, people are not neccessarily unhappy at the bottom, there are still children playing in the water, etc. While there is crime (and more of it in the poorer/lower districts) it’s a time of peace, not war.