Küçükada Castle

Küçükada Castle: A Historical Landmark of Istanbul

Küçükada Castle, also known as the Maiden’s Castle, is a small fortress located on an islet in the Marmara Sea, off the coast of Istanbul. The castle has a rich history dating back to the Byzantine era and has been witness to many significant events in the city’s history. Today, it stands as a popular tourist attraction, drawing visitors from all over the world.


The history of Küçükada Castle dates back to the 5th century AD when the Byzantine Emperor Theodosius II ordered the construction of a fortress on the islet to protect the city from enemy attacks. The castle was built on the ruins of an ancient temple dedicated to the goddess Athena, which is why it is also known as the Maiden’s Castle.

Over the centuries, the castle changed hands several times, with the Byzantines, Venetians, and Ottomans all laying claim to it at different times. During the Ottoman era, the castle was used as a quarantine station for ships arriving from infected areas, and later as a prison for political prisoners.

In 1915, during World War I, the castle was bombarded by the British navy, causing significant damage. It was later restored and opened to the public as a museum in 1993.


Küçükada Castle is a small, hexagonal-shaped fortress with a diameter of 50 meters. It is surrounded by high walls and has four towers at each corner, with a fifth tower in the center. The castle’s walls are made of stone and brick, and its interior is divided into two levels.

The ground level of the castle houses a small museum that displays artifacts from the Byzantine and Ottoman eras, including weapons, pottery, and coins. The upper level of the castle offers stunning views of the Marmara Sea and the Istanbul skyline.


Küçükada Castle is a popular tourist attraction, drawing visitors from all over the world. The castle’s location on a small islet in the middle of the sea adds to its charm and allure. Visitors can reach the castle by taking a ferry from Istanbul’s Kabataş or Eminönü districts to Büyükada, the largest of the Princes’ Islands, and then taking a smaller boat to the islet.

Once on the islet, visitors can explore the castle’s interior, climb to the top of the towers for panoramic views, and enjoy a meal or a drink at the castle’s café. The castle is also a popular spot for weddings and other special events.


Küçükada Castle is a historical landmark of Istanbul, with a rich history dating back to the Byzantine era. Its unique location on a small islet in the Marmara Sea, combined with its impressive architecture and stunning views, make it a must-visit destination for tourists. The castle’s museum, which houses artifacts from the city’s past, adds to its cultural significance. Whether you are a history buff or simply looking for a unique experience, Küçükada Castle is definitely worth a visit.


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