If he's one of the Two Witnesses (which I kind of suspect), I can just imagine the thing starting to sprout arms and legs some day.
"Some Melkites believe that Head of Holy Prophet and Glorious Forerunner John the Baptist is in the Omayyad/Ummayade Great Mosque in Damascus, Syria. In May 2001, Pope John Paul II visited the Omayyad/Ummayade Great Mosque and prayed in front of what is believed to be the tomb of St. John the Baptist. The Mosque was a Catholic Church dedicated to the Holy Prophet and Glorious Forerunner John the Baptist. "