Legible Cities is a trend where the virtual world of image and data is overlaid on the physical world of environment, structures and vehicles. In Legible Cities, inhabitants, through sensors, displays, visualizations, and installations get access to data to redefine their experience of the city in space and time. As science centres develop new models of engagement, expand their audience and enhance their relevance, legible cities offer science centres a channel of engagement, new content distribution, and greater public awareness. The question is – are these the societies we want to live in and what role should science centres play?