The chart has color, cell position, and a number all encoding the exact same data (# of visitors) while, the rest of the data (temperature, weather, day of week) is included as footnotes or annotation. How is this beautiful?
It is aesthetically pleasing to me and I understand what's going on. I'm no data scientist, so my standards on how to arrange data might be far lower than yours. If you're interested in setting minimum standards for data posted here, that might be an interesting thread for discussion.