On the hill of Kanithos, on the Voiotian side of the city, there is the castle of Karambamba. Its construction is defined from the historians between 1680 and 1690 from the Turkish that had taken over the city for two centuries. The caslte was built to enhance the defense of the city since from 1628 the Enetians with Morozin with joint actions were trying to take over Chalkis.