A user wearable device for projecting augmented reality content to augment views of points of interest at a site, the user wearable device comprising: a display; an audio unit with a sound generator; a camera; a memory, wherein for each point of interest marker datum created from multiple images taken from different angles and conditions of interest and associated with a point of interest are stored and a plurality of scenes and data points corresponding to a plurality of points of interest are stored and wherein each of the plurality of scenes is coupled to a point of interest; a processor, connected to the display, audio unit, camera and memory, configured to: detect a point of interest from the plurality of points of interest and a pose using the stored marker datum and comparing to data points derived from a first image captured by the camera; display a scene that is coupled with the detected point of interest using the display and is rendered in accordance with the pose; track images captured by the camera using optical flow to determine whether the camera is still viewing the detected point of interest, wherein a subset of the data points derived from the first image are compared with data points from a second camera image; calculate a delta pose between the first and second camera images; calculate a cumulated pose from the pose and the delta pose; determine a new position and orientation of the camera using the cumulated pose; and display a scene that is coupled with the detected point of interest using the determined new position and orientation of the camera; assigning the cumulated pose to be the next pose; and repeating the track image using the next pose and a next camera image. a display; an audio unit with a sound generator; a camera; a memory, wherein for each point of interest marker datum created from multiple images taken from different angles and conditions of interest and associated with a point of interest are stored and a plurality of scenes and data points corresponding to a plurality of points of interest are stored and wherein each of the plurality of scenes is coupled to a point of interest; a processor, connected to the display, audio unit, camera and memory, configured to: detect a point of interest from the plurality of points of interest and a pose using the stored marker datum and comparing to data points derived from a first image captured by the camera; display a scene that is coupled with the detected point of interest using the display and is rendered in accordance with the pose; track images captured by the camera using optical flow to determine whether the camera is still viewing the detected point of interest, wherein a subset of the data points derived from the first image are compared with data points from a second camera image; calculate a delta pose between the first and second camera images; calculate a cumulated pose from the pose and the delta pose; determine a new position and orientation of the camera using the cumulated pose; and display a scene that is coupled with the detected point of interest using the determined new position and orientation of the camera; assigning the cumulated pose to be the next pose; and repeating the track image using the next pose and a next camera image. detect a point of interest from the plurality of points of interest and a pose using the stored marker datum and comparing to data points derived from a first image captured by the camera; display a scene that is coupled with the detected point of interest using the display and is rendered in accordance with the pose; track images captured by the camera using optical flow to determine whether the camera is still viewing the detected point of interest, wherein a subset of the data points derived from the first image are compared with data points from a second camera image; calculate a delta pose between the first and second camera images; calculate a cumulated pose from the pose and the delta pose; determine a new position and orientation of the camera using the cumulated pose; and display a scene that is coupled with the detected point of interest using the determined new position and orientation of the camera; assigning the cumulated pose to be the next pose; and repeating the track image using the next pose and a next camera image.