Stonehenge: the Heelstone. At the summer solstice the Sun rises over the heelstone as seen from the center of Stonehenge (Se-53). Credit: Mary Ann Sullivan of Bluffton College's Digital Imaging Project site ; download site; Digital Imaging Project site's Stonehenge gallery. Free use is permitted for personal and educational purposes. Prof. Sullivan's Digital Imaging Project seems a great resource for images of architecture and sculpture.