Leave a trail of notes around the world Flemington on Melbourne Cup day, circa 1920. IT'S common for people to marvel at the stories that could be told "if these walls could talk." Well, now they can. But it's not just the walls that can talk. The history of all geographic locations - roads, street corners, parks, homes, venues, shops, workplaces, schools, sporting grounds - is now being written by the everyday people who've visited them, and published on the enchanting new service, findery.com. Essentially the site allows people to leave geo-tagged notes and personal stories at their current location, to be accessed via map pop-ups. Until now, the service was web-based, but Findery now has an iPhone app, so you can leave your memos on the spot. We had a search around the site - or globe - visiting all the Australian capitals, London, New York and the west coast of the US. It was mostly trivial fluff, but the site's potential is enormous. Given that it is Melbourne Cup day, we visited Flemington, and found the attached historic photo.