Nature published a special package titled “Looking at the Best Cities for Science” by Richard Van Noorden showcasing interactive graphics. The analysis which is provided by Elsevier shows how absolute counts of publications per city and relative citation impact have changed from 2000 to 2008. The chart is animated with a slider at the bottom to fast forward in time. You can click on individual cities and drag the time slider to compare their changing output over time. Notable is Pittsburgh’s surge in research output.