"Height Estimator" offers different methods to determine approximately the height of buildings, pylons, rooms, statues, monuments, trees... * Using the difference of atmospheric pressure between two levels. * Using the length of the sun's shadow. * Aiming the base and the top of the object. * Positions and distances can be determined by different ways, including GPS and triangulation. * ... Results can be saved and shared. See http://www.paludour.net/HeightEstimatorHelp.html