The author, Dan Koeppel, runs a cool event called Big Parade (http://bigparadela.tumblr.com http://bigparadela.tumblr.com). He chooses a walking route through

The author, Dan Koeppel, runs a cool event called Big Parade (http://bigparadela.tumblr.com http://bigparadela.tumblr.com). He chooses a walking route through an area with historical significance, and gets a group of people to walk it. The main one is downtown LA to Griffith observatory, which gets several hundred people, but he has done other one-offs. From the description: "The Big Parade is a two-day walk in Los Angeles. It includes about 80 public stairways over 35 miles, from downtown to the Griffith Observatory. The walk runs on a timetable, and is designed as a series of attached loops, so that people can come and go as they please - join us for a mile, an hour, or an epic."