"X" marks the spot with this silver star in a cave below the Church of the Nativity in Bethlehem where Jesus was born into this world. [Matt 1:18-2:12]  ..."Immanuel...God with us."

Bethlehem is also recognized as the place where St. Jerome translated the Bible into Latin (Latin Vulgate)...and he was also laid to rest here.  The skull at his feet was his own way of reminding himself that he must finish his translation before he died...which he did and we are grateful for his discipline and dedication.