Thank you dear sunrise for your useful topic,great idea!
I think Maragheh Observatory is the most ancient one in Iran isn't it?
Sometimes ago,I have read an article about the danger that threats this ancient monument!because of some natural and abnormal reasons but totally it made an alas for me that those who responsible do not know their value...!
But now it has a better situation because some sympathetic people remain yet
Do you have any information about the equipments in that observatory?like their astrolabe?Do you know where they are keeping them?in which museum?