After three hours of driving or so, we arrive at our destination, Saint Catherine's Monastery, officially the Sacred Autonomous Royal Monastery of Saint Catherine of the Holy and God-Trodden Mount Sinai. The monastery was sanctioned by the orders of the Byzantine emperor Justinian I, between 548-565 BCE. But,in the year 330 ACE, the Empress Helena, the mother of Roman Emperor Constantine the Great, built a church with massive granite blocks, believed to be on the site where God spoke to Moses through the burning bush.