Emperor's Sign: Hagia Sophia

Hagia Sophia, which means Holy Wisdom in Latin. 
Was built on the historical Golden Horn in 532. Built by the Byzantine emperor Justiniaus of the time, the basilica was devolve on to the Islamic world when the Ottomans conquered Istanbul in 1453.

It is stated that approximately 10,000 workers worked in the construction of Hagia Sophia, directed by physicist Isidoros from Miletus and Anthemius from Tralles. And that I. Justinianus spent a great fortune for this work. This building, which is the oldest cathedral in the world, after Fatih Sultan Mehmet conquered Istanbul. Mosaics have been carefully covered, as it is forbidden to paint a human image in Islam. These mosaics, consisting of millions of small pieces of gold and silver, are among the most magnificent works of the world even today.