Tourists visit the hilltop Citadel archaeological site in Amman, Jordan, on Oct. 26, 2015. The site, which towers over central Amman, includes some of the earliest fortifications, a Byzantine Church dating from the 6th or 7th century, the Temple of Hercules dating from 161-180 A.D. and the Umayyad Palace complex dating from around 720 A.D. (Xinhua/Mohammad Abu Ghosh)
