As part of Doors Open Days, visitors were invited to step into Schop Institute and take part in an experiment to map Edinburgh's �hidden treasures�. Visitors made a mark of a place or building that they considered to be one of Edinburgh�s old town hidden treasures on a large scale map of Edinburgh.�A QR code web link was then printed�on to a label which�was displayed on the map�at the chosen place. An ephemeral overlay of multiple personal stories applied to Edinburgh�s silent buildings emerged.