Every home with children has stray Legos. Air Mail Pilot knows of at least one apartment in New York City where the kids are all grown and yet for years plastic bricks would continue to turn up under couch cushions and in living room crannies.

This is also true on a global scale. We know that because an English woman named Tracey Williams has devoted herself to documenting the curious phenomenon of Legos washing up on beaches in Europe and around the world.