When I was a google intern in 2013 I downloaded the raw google maps satellite images for all of the United States. I stitched it together into one giant high resolution image. The plan was to get it printed big enough to cover an entire wall. That ended up being too expensive though and nothing ever happened.
A couple of decades ago I was toying with stitching too, tring to combine high-resolution topo maps to cover all California. That was when I learned that the Earth is not flat, after my attempt failed. ;)
