The halos hover above the street, suspended by cables from nearby buildings or from metal poles, where necessary.  A grid of LEDs positioned behind a perforated Corten steel fascia to both sides of the halo, convey a range of information, from wayfinding to local data, such as the weather or football results. Wayfinding will either be fixed or interactive, responding to low cost electronic identification tags, to be located in tickets, business cards, wristbands and flyers.  This permits interactivity while maintaining privacy for the user.  Bright LEDs located around the base of the halos are used to project a temporary stage onto the street below.