Leander’s tower is one of the symbol buildings of Istanbul. It has a legendary historical background. Firstly the building year isn’t certain. Then a legend of secret underground tunnels makes this building more likely for archeology. Second point is more interesting than other mysterious.
Although it wasn’t confirmed, a historical gossip tells us that the tunnel network exists under this region. From the historical peninsula of old city to Princess islands, the region was linked by underground tunnel network.
Archeology has some evidences that prove us the heritage of Istanbul. But none of them was confirmed.