Simi Town consists of two settlements preservable, Ano Symi which is the Castle of the Knights, and Gialos which is the island's port. On the main street of the city of Symi you will see the Town Clock, the Police buildings and the Post Office, and the historic house "Katerinetes" where the incorporation treaty of Symi and other Dodecanese Greece was signed. It is worth visiting Pontikokastro, which is one of the oldest monuments of the island. In Ano Symi it is located the Archaeological and Folklore Museum, apart from the remarkable collection of folk-hosts heads of statues, monuments and post-Christian period, and Byzantine icons.
Monastery of Archangel Michael Panormitis. It constitutes the most important religious monument. The monastery has a hostel, which can accommodate up to 500 people. It is also worth visiting the folklore museum and church. In the sacristy of the monastery it was kept putting wishes in bottles and the sailors were saying that they were "washed up" by the sea. According to locals, if a vow is not taken, the Saint goes and gets it, and for this reason he was called the "Thief."