What is the functional use of the Hagia Sophia today

Question

A. Christian Basilica
B. Islamic Mosque
C. Jewish Temple
D. Museum

Answer 1

I believe you are correct. Today it is a museum.

Answer 2

“The [Christian] church of Hagia Sophia (literally "Holy Wisdom") in Constantinople, now Istanbul, was first dedicated in 360 by [Roman] Emperor Constantius, son of the city's founder, Emperor Constantine . . . [The] main structure is essentially that which was first [re]built between 532 and 537 . . . in 1453, Hagia Sophia was converted to a mosque. . . . In 1934, the Turkish government secularized the building, converting it into a museum.”

- Wegner, Emma. "Hagia Sophia, 532–37". In Heilbrunn Timeline of Art History. New York: The Metropolitan Museum of Art, 2000–. http://www.metmuseum.org/toah/hd/haso/hd_haso.htm (October 2004)

So Hagia Sophia was a Christian church for 1453-360 = 1093 years, a mosque for 1934-1453 = 481 years, and a museum for 2014-1934 = 80 years so far.

Answer 3

It was Mosque converted to museum.