The disclosure provides a visual positioning system, server, and method for positioning a location of a mobile user equipment with camera. The method comprising receiving a still containing at least one visual cue, taken by camera of the mobile user equipment in the location; recognizing the visual cue contained in the still according to a database storing predetermined data sets of visual cues; and calculating the location according to the still and the data set of recognized visual cue. Each data set further comprising location, dimensions, and orientation of corresponding visual cue.