Category: Infrastructure
Type: Fortress
Location: Anadolu Hisarı, Beykoz
Date: 1393-1394
Designer: Unknown
Period: Ottoman Empire
Photos: İstanbul Büyükşehir Belediyesi Kültür Varlıkları Daire Başkanlığı (İBB Miras)
Constructed between 1393 and 1394 by Ottoman Sultan Bayezid I, Anadolu Hisarı (the Anatolian Fortress) stands as a vital piece of military history at the narrowest point of the Bosphorus in Beykoz. Originally built to blockade the Byzantine capital by controlling maritime traffic from the Black Sea, its architecture reflects early Ottoman defensive strategies, featuring a central rectangular keep (donjon) surrounded by fortified inner walls. The fortress was later strategically enhanced by Sultan Mehmed II, who added three-meter-thick outer walls and defensive towers to complement the Rumeli Hisarı on the opposite bank during the final siege of Constantinople in 1453. Today, this compact yet formidable structure serves as a picturesque reminder of the transition from medieval fortification to imperial dominance, blending rugged stonework with the serene atmosphere of the Göksu Creek.
