The island of Hippocrates — where Western medicine began, a 14th-century Knights' fortress on the harbour, and an Ottoman minaret beside Greek ruins on the same waterfront
Kos is a flat, 290km² Dodecanese island sitting 4km from the Turkish coast — layered with Greek, Roman, Byzantine, Knights Hospitaller, Ottoman, and Italian colonial strata, all visible in the same town centre. Kos Town has an extraordinary density of classical and medieval monuments: the 3rd-century BCE Asklepion (the ancient world's most important hospital complex, founded by Hippocrates), the 14th-century Castle of the Knights, the Defterdar Mosque (1786), and Roman baths and agora — all within a few minutes' walk. The island is flat enough to cycle its full length.
Kos was the birthplace of Hippocrates (c.460 BCE), the father of Western medicine. The Asklepion was built after his death but continued his rational medical tradition, functioning as a hospital and medical school for centuries. The Knights Hospitaller captured Kos in 1315, using it as a supply base for their Rhodes headquarters. Ottoman conquest followed in 1523; the Defterdar Mosque dates from the 18th-century Ottoman administration. Italian occupation (1912–1943) gave the town wide boulevards and fascist-era administrative buildings. A major 1933 earthquake destroyed much of the old town,…