In Google Tourism: Is Nothing Sacred Anymore?, I round up some tools on the web that let you explore the world without actually having to venture into it.
Similarly, Paris 26 Gigapixels brings you right to Paris, in high definition.
From the About the project page:
Paris 26 Gigapixels is the name of the biggest assembled panoramic image of the world. It shows Paris in a very high definition. A gigapixel is 1 billion pixels! The image is a stitching of more than 2000 individual photos.
Apparently, if you wanted, you could print this baby out on a 6500 sq. ft. sheet of paper and still have great quality. I’m no mathematician, but I think that just might cover my bedroom wall.