Karababa Castle built by the Ottomans in 1684, to protect Chalkis from the Venetians. Designed by Venetian Gerolimo Galopo and architecture are more European than Ottoman. It occupies the top of the hill Kanithou. It has a maximum width of 240 meters and a maximum length of 54 meters. It has a gate located on the southeast side tou.To castle has been restored today largely thanks to the work carried out during the years 1985-2000.
Inside the castle stands the church of the Prophet Elijah. Here visitors have the opportunity to admire the wonderful view of the city. Outside the castle there is the grave of writer G. Chalkideus. Skarimbas.