Eric Fischer has put together another stunning set of maps using color-coded data. This time, using 2000 Census information about race and ethnicity, Fischer has created maps of urban areas showing where the color lines are drawn, or in some cases, overlapping.

Fischer explains that he was inspired by the work of Bill Rankin in creating his set of maps. The data is represented as follows: "Red is White, Blue is Black, Green is Asian, and Orange is Hispanic, and each dot is 25 people." Here are some explorations of areas on his Los Angeles and Long Beach maps. Surprised?

Previously, Fischer used the geo-tagging feature on Flickr to create maps illustrating where tourists take photos versus where locals take photos in urban areas.