Where is this religious site located?

Here is the question :

WHERE IS THIS RELIGIOUS SITE LOCATED?

Here is the option for the question :

• Moldova
• Turkey
• Armenia
• Georgia

The Answer:

And, the answer for the the question is :

Explanation:

[STC0018708]. The Hagia Sophia in Istanbul, built in 537 CE, is a Byzantine-era edifice that has operated as both a church and a mosque at various times throughout history.