When Roman Emperor Diocletian built his elaborate palace at the turn of the third century, he also commissioned the Temple of Jupiter. Jupiterov Hram honored the mythological Roman god of gods who Diocletian also claimed was his father. During the 7th century, the temple became a Christian baptistery. It is called Saint John’s Baptistery in tribute to an 8th century archbishop who is entombed under this elaborate ceiling of carved stone.
