"Otzarreta Calendar 2014" is an Augmented Reality application that offers us the chance to interact with the "Identity Details 2014/15" calendar by Otzarreta Comunicación, inspired by details of emblematic European cities. In addition, through this application you can download the complete pdf file of the calendar to enjoy it. Once the application has been downloaded and installed, you just have to locate the prints that contain the "AR" logo and point your smartphone or tablet camera at them to start discovering the many surprises hidden in each month.