For the work Dome, placed in proximity of the Museum of Maps and Old Books from Bucharest I propose the virtualisation of one of the celestial maps that are rendered on the ceilings of the institutions. Reproductions of the maps that were created by Frederik de Wit. Through a smartphone and with the help of its accelerometer sensor, the visitor can visualise the map in real space positioning on the sky by pointing the phone at the sky and moving around. The interventions, although accessible from everywhere through a web browser are geo location locked to specific sites. When accessing the page the location of the terminal is being submitted to the server and if this matches the area of viewing of a work, then the work is revealed.