Gutenkarte maps locations mentioned in project gutenberg texts. Very cool idea, though the UI seems a little twitchy. I think you are supposed to be able to click on place names to see where the place is mentioned in the text, but it doesn’t seem to work consistently.
Gutenkarte is a geographic text browser, intended to help readers explore the spatial component of classic works of literature. Gutenkarte downloads public domain texts from Project Gutenberg, and then feeds them to MetaCarta’s GeoParser API, which extracts and returns all the geographic locations it can find.