Fabulist!

34 North 118 West is a walking tour in downtown Los Angeles created by a group of resident artists. > You roam a half-mile area armed with a GPS receiver, headphones, and a Tablet PC, which displays your movement on a digital version of a century-old map. Hot spots trigger audio accounts of the city's history as a bustling railroad hub. The route you take determines the stories and their tellers - a cook, the station clock inspector, a worker clearing the tracks after a suicide. (link) via wired