The largest stamp mosaic measured 100.10 m² (1,077.47 ft²) and contained approximately 115,133 individual stamps. It was created by Leipzig International School, in Leipzig, Germany, between 24 August 2007 and 23 June 2008.

Over 300 parents, students and teachers glued stamps to the mosaic which depicted the Leipzig skyline with the word Leipzig across the centre of the mosaic.

The school collected stamps for a year and a half and left stamp collection boxes in local shops