Yerebatan Sarnıcı (Cistern Bassilica)

Istanbul was one of the most often besieged cities in the world and has always needed permanent water supplies. And as a result many underground cisterns were built during the Byzantine Empire. Water was brought to these big reservoirs from far away sources through aqueducts. It is still possible to see remains of a large [...]

Ayasofya (Hagia Sophia)

The Hagia Sophia was probably the largest building on the world’s surface, barring the Egyptian Pyramids, or the Great Wall of China. For many centuries it was the largest church and today is the fourth largest in the world after St. Paul’s in London, St. Peter’s in Rome and the Duomo in Milan. The great [...]

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