Tourists take pictures next to the pillars of the Roman Temple of Hercules during their visit to the Amman Citadel, an ancient Roman landmark, in Amman, Jordan February 8, 2018. Show moreShow less
Tourists take pictures next to the pillars of the Roman Temple of Hercules during their visit to the Amman Citadel, an ancient Roman landmark, in Amman, Jordan February 8, 2018. Show moreShow less
Tourists take pictures during their visit to the Amman Citadel, an ancient Roman landmark, in Amman, Jordan February 8, 2018. Show moreShow less
German President Frank-Walter Steinmeier (center R) and his wife Elke Buedenbender (center L) visit the Amman Citadel, an ancient Roman landmark, in Amman, Jordan January 27, 2018. Petra News Agency/Handout via REUTERS .Show moreShow less
Tourists take pictures next to the pillars of the Roman Temple of Hercules during their visit to the Amman Citadel, an ancient Roman landmark, in Amman, Jordan February 8, 2018. REUTERS/Muhammad Hamed.Show moreShow less
Tourists walk during their visit to the Amman Citadel, an ancient Roman landmark, in Amman, Jordan February 8, 2018.Show moreShow less
Tourists walk during their visit to the Amman Citadel, an ancient Roman landmark, in Amman, Jordan February 8, 2018. Show moreShow less