The map was made by a city traveler who recorded the fragments of city through out a journey, and then reproduced an individual London map based on his experience, imaginations and memories. The 2.5 dimensions is used as a technique of visual description, presenting an unique visual experience that neither 2D nor 3D can present. The 2.5D not only illustrates the real depths, which is more dynamic than 2D, but also freely connect the fragments of the city in the vision with multiple perspectives, which overwhelmed the limitations of time and distance in 3D. Therefore, 2.5D map could be utilised as a visual technique when presenting the city; people are able to observe the city, events and spaces everyday from different aspects.