1. A photo search method of a mobile terminal, the method comprising: displaying, on the mobile terminal, an augmented reality based camera view; searching photo information associated with at least one location on which a focus of the camera view is placed from a network system; displaying the searched photo information at each location on the camera view; displaying a list of locations at which photos are captured when a trace function is selected in a state that the searched photo information is displayed; displaying routes from a closest location to one or more next locations as arrows, respectively, when specific location is selected from the list; and displaying a fastest route that can be followed to a selected next location when a specific arrow is selected from the arrows.