The Mosque of Omar, more usually known as the Dome of the Rock, was built by Caliph Abd-el-Malik (687-705) on the site of the Temple of Solomon. The latter was destroyed against the Emperor’s orders, during the Roman sack of Jerusalem in 70 CE. Revered by Moslems as the site from which the prophet Muhammad ascended to heaven, and by Jews and Christians as the place to which Abraham led Isaac intending to sacrifice him