Palatia

 place with historical importance, invisible

This was once Astypalaea, the island‘s capital in ancient times. That city was destroyed by earthquake in 413/412 BC, and the remains of a small sanctuary of Asklepios and some of the structures at the harbour are all that have survived. The antiquities found here are kept in the quarter known as Kamari, where parts of the ancient mole can still be seen. The area also preserves remnants of a Hellenistic theatre dating from the 2nd century BC and of temples dating from the same period.
In 1902 archaeological excavations brought to light the foundations of a Doric temple to Demeter. A headless statue of the muse Clio, dating from the Hellenistic period, was also found.
According to the historian Zaraftis, the chapel of Our Lady at PaIatia stands in one of the corners of an ancient temple to Dionysus. This church is above the temple of Demeter.
The collection on display in the Kos Archaeological Museum includes a headless statue of the goddess Demeter, seated, and also an enormous head of Heracles, the work of Lysippus, found in the same area.