What if, rather than in cemeteries, tombstones were placed at the exact location of the deceased’s final moments? That’s the premise of the ghost bike: a white bicycle, often covered with flowers and a plaque, that is chained to a fence or a street sign as a memorial of a life lost in a cycling accident there. Since the first ghost bike was anointed by a bike mechanic who witnessed an accident in 2003 in St. Louis, Missouri, the project has spread to over 200 major cities around the world. But nowhere are ghost bikes more common than in New York City, where a dedicated team of volunteers builds and maintains the city’s hundreds of memorials. According to the project’s website, the white bikes “serve as reminders of the tragedy that took place on an otherwise anonymous street corner, and as quiet statements in support of cyclists’ right to safe travel.”