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Anadoluhisari

by İhsan Deniz Kılıçoğlu, CC BY-SA 3.0, via Wikimedia Commons

Anadoluhisari

Anadoluhisarı, historically known as Güzelce Hisar, is a fortress located in Istanbul, Turkey. It was built between 1393 and 1394 AD by the Ottoman sultan Bayezid I as part of his preparations for the second Ottoman siege of Constantinople, which took place in 1395 AD.