Tracking method for determining the position of a location marked on a wall, comprising the steps: recording the marked location in a first image with a camera of a mobile measuring station oriented in a viewing direction; determining the image coordinates (x0, y0) of a first image point on to which the marked location is imaged in the first image; repeatedly rotating or swivelling a beam having at least one ray of light about at least one axis of a stationary base station separate from the mobile measuring station in emission directions changing according to a predetermined sequence in order to create a moving pattern of light spots on a wall; recording a series of images of the wall in the viewing direction, wherein one of the moving light spots is imaged on to at least one second image point (P1, P2) in the series; determining the image coordinates (x1, y1; x2, y2) of the at least one second image point (P1, P2); determining the respective emission direction of the at least one ray of light the light spot of which is imaged on to the at least one second image point (P1, P2) at a point in time in one of the images, based on the points in time at which the respective image is recorded; ascertaining the distance (d1, d2) from the axis of the base station to the wall in the respective emission direction based on measurements of the distance to the wall in measuring directions departing from the base station stored in a reference database, and determining the position of the marked location based on the image coordinates (x0, y0) of the first image point, the image coordinates of the at least one second image point (P1, P2), the respective emission direction associated with the at least one second image point (P1, P2) and the respective distance (d1, d2) from the axis of the base station to the wall in the associated emission direction. recording the marked location in a first image with a camera of a mobile measuring station oriented in a viewing direction; determining the image coordinates (x0, y0) of a first image point on to which the marked location is imaged in the first image; repeatedly rotating or swivelling a beam having at least one ray of light about at least one axis of a stationary base station separate from the mobile measuring station in emission directions changing according to a predetermined sequence in order to create a moving pattern of light spots on a wall; recording a series of images of the wall in the viewing direction, wherein one of the moving light spots is imaged on to at least one second image point (P1, P2) in the series; determining the image coordinates (x1, y1; x2, y2) of the at least one second image point (P1, P2); determining the respective emission direction of the at least one ray of light the light spot of which is imaged on to the at least one second image point (P1, P2) at a point in time in one of the images, based on the points in time at which the respective image is recorded; ascertaining the distance (d1, d2) from the axis of the base station to the wall in the respective emission direction based on measurements of the distance to the wall in measuring directions departing from the base station stored in a reference database, and determining the position of the marked location based on the image coordinates (x0, y0) of the first image point, the image coordinates of the at least one second image point (P1, P2), the respective emission direction associated with the at least one second image point (P1, P2) and the respective distance (d1, d2) from the axis of the base station to the wall in the associated emission direction.