From a broader series begun in 1997, each of these works utilizes 100 unique commemorative photographs culled from the internet. The final compositions are arrived at using both the mean and the median, splitting the difference between a specific norm and an ideal one.
Tech notes on the amalgamation body of work:
Later amalgamation work (Decades, Late Night, Special Moments) was done in C/C++ on Windows boxes with the ImageMagick C++ libraries. I did The Song of the Century manually with PC audio software (I honestly cannot remember what software, but I did download a few of the cover songs with the original Napster)
For the City and Loop pieces, we actually modelled much of Chicago's Loop as semi-transparent, textured rectangles and rendered this "city" from typical tourist vantage points. All of this was done in Maya. The Portrait pieces were done with Processing.