The evolution of the design of urban areas and their functionality should primarily be rooted in the image of a city. Within this frame, a thorough analysis is necessary for post-traumatic cities in which images have been substantially affected. Beirut is an example of a post-traumatic city with complex characteristics; it evolved with diverse identities of demography and architectural development throughout its experience with prosperity and disasters. To address this complexity, this study examines within the field of neuro-architecture the impact of the built environment on emotions and behaviour and the concept of image storing in the brain which creates collective memories. It also explores the concept of a healthy city and the sense of identity and safety in the post-traumatised city. It analyses the qualitative findings of one-on-one interview with 30 Biartis who come from different generations and backgrounds and who narrate their experience and knowledge of Beirut from the 1960s until the present. The goal is to set solid urban and architectural guidelines to reduce ambiguity and fear in the rapid pace of developing post-traumatic cities and enhance healthy brain mechanics and communication by utilising the dynamic urban picture in a consistent, safe, and familiar framework.