Here & There is a project by S&W exploring speculative projections of dense cities. These maps of Manhattan look uptown from 3rd and 7th, and downtown from 3rd and 35th. They're intended to be seen at those same places, putting the viewer simultaneously above the city and in it where she stands, both looking down and looking forward.

Origins and sources

Some of my favourite maps are drawn by a British writer, walker and accountant named Alfred Wainwright. Phil Baines provides background:

David Hockney presents a fantastic dissection of perspective in the film A Day on the Grand Canal with the Emperor of China or Surface Is Illusion But So Is Depth. He describes a very old painting from China which depicts a journey along the grand canal. I really like how he describes the scene as ‘making sense.’