I know its been a few months, so hopefully I am not past the period when I should start a new thread.
Lately I have been obsessing over this plan, a crazy city-beautiful plan for a massive
imperial world capital!
Sorry the etching on the bottom image isn't legible. You can still clearly see the U shaped canal running through the city. There is actually another one closer to the stadium you can clearly see in the first image. The source for the first image includes a higher resolution.
Spezialsammlungen Digital
Cornell University