On one of those "I have to have that" shows on TV, they did a segment on a company that creates photo mosaics. I created one earlier this year but could not bring myself to buy the completed project. My wife surprised me and bought the print as a gift.
These pics are taking with my phone so they don't do it justice, but you will get the idea. This mosaic is created from 2809 images taking during the construction of our house. I thought it was a fun way to display the photos.