 And pilgrims visited these churches. We discussed how these mysterious crosses were found on a church in Jerusalem. And it turns out that, in fact, early pilgrims there would draw a cross as a sign of their visit. They began the pilgrimage there. They would travel across the land. They would visit some of the monasteries, even the Sinai and the Negev Hills. And for many of the archaeologists say that these are almost three-dimensional drawings, that some of them may have been drawn.