From the top of the pedestrianised main street, head for the distinctive, giant plane tree of Plateia Agios Nikolaou. From here, a narrow lane leads to the intriguing remnants of the Venetian Castle of Antiparos, entered through an archway. The castle dates from the 13th to the 16th centuries. The surrounding wall boasts external quirky staircases and balconies while the remains of the central keep is crowned by a stone water tower and clasped round by gnomic churches. There’s a small Folk Museum here also.