Anadolu Hisarı, also known as Anatolia Castle, is an imposing fortress located on the banks of the Bosphorus in Istanbul. This historic structure was built in the 15th century by Ottoman Sultan Bayezid I to protect the city from threats from the sea.Construction of the Anadolu Hisarı was completed in 1395 and is one of the finest examples of military architecture of the Ottoman era. The fortress is strategically located at a point where the Bosphorus is relatively narrow, allowing effective control of maritime traffic and coastal defense.The structure of the Anadolu Hisarı includes a series of imposing walls, watchtowers, ramparts, and a main gate that gives access to the fortress. The thick and strong walls reflect their function of protection and resistance to enemy attacks.Inside the fortress, various buildings can be seen, such as a mosque, a military commander’s residence and some dwellings. During the Ottoman period, Anadolu Hisarı was inhabited by soldiers and their families, who defended the fortress and maintained a military garrison in the area.A unique feature of Anadolu Hisarı is its panoramic view of the Bosphorus. From the top of the walls, there is an enchanting view of the strait, with Asia on one side and Europe on the other. This prime location makes the fortress a popular destination for visitors who wish to enjoy spectacular views and take in the beauty of the Bosphorus.Today, the Anadolu Hisarı is open to the public and is a popular destination for tourists wishing to explore Ottoman history and architecture. You can walk along the walls, visit the mosque and enjoy the panoramic views of the city and the Bosphorus. The fortress is also a great place for a quiet stroll and to soak in Istanbul’s historic atmosphere.