The Hagia Sophia is a big building. 

The Hagia Sophia is a famous building. 


The Hagia Sophia is a famous site in Istanbul, Turkey. 

The current building is very special. Emperor Justinian I ordered it to be built. 
Many different groups have used the site. In 1453, the Ottoman Empire took the city. They turned the church into a mosque. They added tall towers called minarets. 
The Hagia Sophia is a famous building in Istanbul, Turkey. 


The building is famous for its very special design. It features a huge dome that was a new way to build. 
This site has seen many different buildings over time. The first church was built in the year 360. 

Two Greek thinkers designed the current structure. Their names were Isidore of Miletus and Anthemius of Tralles. They were experts in geometry. The building was officially called the Temple of God's Holy Wisdom. It remained the largest church in the world for over five hundred years. It was the center for the Eastern Orthodox Church for nearly a thousand years. 
Many different groups have left their mark on the site. In 1453, the Ottoman Empire took the city. 

The Hagia Sophia is a monumental structure located in Istanbul, Turkey. 

The current structure is famous for its massive interior space. 
History shows that three different churches were built on this same site. 
The third and final structure is the one we see today. 

The building has experienced many shifts in religious use. 

In the modern era, the building's status changed again. In 1935, the secular Republic of Turkey converted the site into a museum. 
The architectural influence of the Hagia Sophia is vast. 
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