According to the myth, city is established by Megarian immigrants in B.C. 6th Century with name of Sesamos; as Persian princess Amastris, who is married to tyrant Dionysos from Herakleia Pontika (Karadeniz Ereğlisi), establishes the city again in Hellenistic period, the city is called with this name. Name of Amasra, which is a coastal town, bounded to Bartın province in Western Blacksea Region, is the changed form of Amastris name in the ancient age, in the course of time. After the management of Princess Amatris, city enters under the rule of firstly Kingdom of Pontus and then Roman Empire. Amasra becomes center of Bithynia-Pontus State in this period. Amasra witnesses great public works in A.D. 2nd Century. City, remaining within Eastern Roman boundaries in 395, is rented to Genoeses by Byzantines in 1270. City, located on an island and peninsula, is surrounded with walls and it is in the position of two castle on the peninsula on the penisula, is known as Zindan Castle. Both castles are connected to each other by Kemere Bridge, constructed in Roman period. Church, belonging to 9th Century on the castle, is turned into the mosque and called Fatih Mosque. Furthermore, a church, which is turned into a small mosque, is called Church Small Mosque. Amasra Castle is constructed again on the foundations of castle, belonging to Roman period in 9th Century and undergoes repair in Genoese and Ottoman periods. Therefore, there are some amblem reliefs, belonging to Genoese period, on the walls. Moreover, some structure remains belonging to various periods are seen in the city and it is surrounding. Iskele Mosque, Eyiceler Small Mosque and Ethem Ağa Residence are some of architectural structures, belonging to Ottoman period. Amasra Museum, in which works of Roman, Byzantine, Ottoman periods and local ethnographic works are exhibited, is located in the city.