Within the town the early Christian Basilica of St. Isidore and the Cathedral are open to the public. The Korais Library, one of the finest in Greece, has a collection of rare manuscripts and books. On its second floor is the Folklore Museum and collection of Phillpos Argentis. (hours: 8-2, closed Sun). Among the portraits of the Argentis family are copies of the Massacre at Chios by Delacroix.
Chios Town has an Archeological Museum at 5 Michalon St. which contains finds from all over the island, some bearing the sphinx, the ancient Chios symbol. The Maritime Museum will please anyone interested in shipping.
Chios is fairly non-developed and doesn't receive a lot of tourism. The beaches in the North are smooth and flat and ideal for invasion according to Greek Army friends of mine who have had to guard them during their mandatory army service. One of them told me, "Limia and Agh Markella just opposite Chios Town are both non-touristic and Nagos and Giossonas in the NE of the islands have very nice unstructured beaches."
Karfas beach to the south is the nearest to Chios Town and reachable by blue bus. The soft sand here is being covered up by hotels and other trappings of tourism. See the map in the map section below for many more beaches.