Skiathos Castle, Medieval fortress in Skiathos Municipality, Greece.
Skiathos Castle is a medieval fortress on a rocky promontory on Skiathos' northern coast, with steep cliffs dropping to the sea on three sides. The structure included a narrow entrance gate, defensive walls, and a complex layout designed to house and protect the population living there.
The fortress was built in the mid-14th century for protection against pirate raids and remained under Byzantine control until 1453. After that, it passed through Venetian and later Ottoman rule as control of the area shifted.
The site held twenty churches organized into four parishes alongside a mosque without a minaret, serving as the religious center of the fortified medieval settlement. These varied places of worship show how different communities coexisted here across centuries.
Reaching the fortress requires walking up a steep path to the single entrance gate, so sturdy footwear is advisable. Exploring the ruins demands care when crossing uneven ground and staying away from edges near the cliffs.
The gatehouse had a sophisticated defense system with a terrace where defenders could pour boiling water on attacking enemies. This practical and brutal tactic was key protection against direct assaults on the main entrance.
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