sentences:  Although they are termed "passage graves", they were ceremonial sites, whose function was more similar to churches or cathedrals, where burials were incidental.Since the excavations and restoration of the original entrance of the passage observations from inside the tomb at sunrise on the spring and autumn equinox have revealed that the orientation of the passage, probably fortuitously, allows the sun's rays to shine through to the chamber entering the back recess of the terminal cell.Although many passage graves showed evidence of continued activity into the Late Neolithic period, La Hougue Bie was abandoned before that time.