Corfu Kassiopi Tower: The Tower of Kassiopi is placed on top of a hill to the north of the town of Corfu, overlooking the harbor and the surrounding region. The tower was built to protect the town and its port from the attacks of enemies and pirate invasions. It is dated back to the mid-12th century and has some Roman and Byzantine foundations.
Unfortunately, the tower was seriously damaged by the Ottomans during the Venetian ruling, in the 14th century, and also by the Venetians, who were said to have used the building material of this tower to reinforce the towers of Corfu town. In our days, some efforts have been made to restore it but it yet lies in ruins.