Trepidity writes "Wikipedia has been making an effort to mark up articles with latitude-longitude coordinates when they refer to a specific location. It's now been done for over a million articles (across all languages). I was curious which parts of the world have gotten the most coverage. The answer: Florence, Italy has the most articles within a 1-km-diameter circle; and London tops both the 10-km and 100-km lists. Full results and methodology details are available."