The Castle of Nerantzia (or Castle of the Knights) is at the port of Kos and dominates over the city. It was built in the 15th century by the Knights of Rhodes for the fear of the Ottomans.
The place in ancient times was a small islet, connected with the island of Kos by a bridge, the one seen today at Phoinikon Street.
The museum of Architecture in the Castle of the Knights Neratzia housed also archaeological artefacts. Μουσείο Αρχιτεκτονικών Μελών Κω.
The Tree of Hippocrates is a platane under which, according to legend, Hippocrates of Kos the father of medicine used to taught his pupils the art of medicine.
Ancient port of Kos.
