"Glorious" Ancient Chamber Found in Israel

Inside a newly discovered underground chamber, Israeli archaeologist Adam Zertal points to an unseen carving that he suspects may be a Zodiac sign that dates back to the Roman period around the first century A.D.

The largest human-made cave in Israel, the 1-acre (0.4-hectare) space in the Jordan Valley is thought to have begun as a quarry. In subsequent centuries it may have served as a monastery and a hideout for persecuted Christians or the Roman army, Zertal said.