Once called Hydroussa, Andros is the most northerly of the Cyclades. It has mineral springs. The chief town of the island is called Andros, but it is also known as Kato Kastro or Chora. It has many attractive popular houses. The small museum in the town contains mainly ancient incriptions from Palaiopolis, built on the site of ancient Andros. The most interesting summer resorts are Apikia (or Sariza), Batsi and Corthion.