It's the Blue Mosque, is it not a monument?, if I broke the rule, please delete.
Here's Wikipedia's description:
A monument is a type of structure either explicitly created to commemorate a person or important event or which has become important to a social group as a part of their remembrance of historic times or cultural heritage, or simply as an example of historic architecture. In English the word "monumental" is often used in reference to something of extraordinary size and power, as in monumental sculpture, but also to mean simply anything made to commemorate the dead, as a funerary monument or other example of funerary art. The word comes from the Latin "monere," which means 'to remind' or 'to warn.' The term is often used to describe any structure that is a significant and legally protected historic work, and many countries have equivalents of what is called in United Kingdom legislation a Scheduled Monument, which often include relatively recent buildings constructed for residential or industrial purposes, with no thought at the time that they would come to be regarded as "monuments".

No problem Mod, I was there and it seemed obvious to me, sorry.