The bridge of the Castle of Neratzia that connects the Plain Tree Square with the enstrance to the Castle. The castle pf Neratzia on the seafront of the city of Kos was built duiring the Knighthood period of the island. A bridge used to connect the inner with the outer yard of the castle, over the ditch that connected the sea of the port with the eastern sea side of the castle. This bridge has survived to this dat and today it connects the square of the Plain Tree with the entrance to the Castle, over the picturesque Palm tree boulevard.