how old is the dome of the rock in jerusalem
It was initially completed in 691 CE at the order of Umayyad Caliph Abd al-Malik during the Second Fitna, built on the site of the Roman temple of Jupiter Capitolinus, which had in turn been built on the site of the Second Jewish Temple, destroyed during the Roman Siege of Jerusalem in 70 CE. The original dome collapsed in 1015 and was rebuilt in 1022 -- 23. The Dome of the Rock is in its core one of the oldest extant works of Islamic architecture.