This is a small selection of the Kodak Colorama photographs which were on display (as backlit transparencies) in Grand Central Station, New York City from 1950-1994. They were huge (60 feet wide) and over 500 were produced by various photographers using bulky large format cameras. Unfortunately for me, I never got to see one in its full size grandeur, so I can only imagine what it must have been like. But I am charmed by the quaint subject matter and stylized view of American Life, and since they were Kodak ads, there is usually someone in the scene with a Kodak camera (presumably containing Kodak film).
There is an underwhelming book I purchased a few years back, Colorama: The World’s Largest Photographs, underwhelming in that the pictures are poorly represented in a rather small book, with page folds in most of the pictures, alas.
Here is an interesting video where one of the photographers, Neil Montanus describes how one of the above images was captured (the underwater scene):