The system is a Unity3D-based digital landscape display system on the central axis. By browsing the early scenic spots on the central axis, we can better understand Chinese history and culture as well as the history and culture of the central axis. It is mainly to use 3ds max for architectural modeling of scenic spots and rendering of scenes, and then import it into Unity 3D for script development using C# language to realize various interactive functions. At the same time, the AR function of Android is added, which can bring different immersive experience by using mobile phone APP.

In order to better browse the scenic spots in full angle, the viewing angle of the first person character is added to the scene, and the viewing angle position can be moved and restored in the scene by pressing the up, down, left and right, front and back, and the restoration button.

In addition to roaming in all directions in the scene, the most important thing for the interactive function is that three numbers are randomly placed in the scene to represent three questions about the scenic spot. Only after all the answers are correct will a prompt to confirm jumping to the next scene pop up. After the answers are correct, there will be an analysis of the questions to help oneself better understand the history and culture of the scenic spot and increase knowledge. The corresponding scene will have pictures of the scene and introduction text about the scene. Obtaining this information will help us better understand the culture of the scenic spot. The interactive functions in the landscape scene include clicking on the Tiananmen Gate Tower to control the movement of tanks and clicking on the Forbidden City Tower to control weather changes.