Of Istanbul's many towers, Galata is the oldest and, without doubt, the most emblematic. The tower is 63 metres high, conical and cylindrical, with a total of nine storeys, making it the tallest structure in the city when it was built.
The birth of the Tower of Galata is shrouded in mystery. For the moment, there are two theories. According to the first theory, the Byzantine emperor Justinian built the tower as a lighthouse in 527 A.D. In 1348, the Genoese colony arrived and rebuilt the monument inside the city walls of Galata to protect itself from invaders.
The Galata Tower provided excellent surveillance from inside the city walls and was of crucial military importance. It was also later used as a fire detection tower during the Ottoman Empire before being converted into a prison during the reign of Sultan Suleiman 'The Magnificent'.