Often times when we make maps it is based on our subjective interpretation of what is aesthetically pleasing. I would like if people posted examples of beautiful maps, displaying any phenomena in any manner.
Below I have posted one of my favorite maps. This is an example of a value-by-alpha map recently asked about on the forum, and the picture is taken from the GeoVista website (which has a ton of cool maps and tools to make them.)
citation for the maps makers
Geovisual analytics to enhance spatial scan statistic interpretation: an analysis of U.S. cervical cancer mortality Jin Chen , Robert E Roth , Adam T Naito , Eugene J Lengerich and Alan M MacEachren International Journal of Health Geographics 2008, 7:57
While I did not stipulate this when I originally asked the question, I think it would be best for the cultivation of knowledge if people would elaborate on why the particular maps they cite are beautiful. I would appreciate any new responses to include this, and if the other authors are still around to update their examples for why they think the maps they mentioned are beautiful.
And I will start with my example, the reason I believe I think the cited value-by-alpha map is beautiful is that it creates a very simple, but obvious and striking visual hierarchy with which to interpret the standardized mortality ratio's. This is in particular useful combined with the very "noisy" standardized mortality ratio's, and the typically very noisy clusters of abnormally high rates produced by the SatScan clustering technique. One can even clearly see very small clusters around Chicago and Philadelphia.
I also appreciate other supplemental elements of the map that make it easy of the eyes. Such as the black background, the heavier white outline for around the states and the white outline for the states (that is blended the same as the attribute values). Maps with many polygons can particularly be distracting if one does not take care when plotting the polygon outlines.
Also the legend is particularly well created, and effectively demonstrates the concept (although it certainly isn't a typical legend, so took some original creative thought).