The most famous landmarks of Feodosia are medieval sites: several towers (the Tower of Saint Kostantin, the Dokovaya and Round Towers and the Tower of Foma) and the ruins of the Genoese Fortress (walls fragments and the well-preserved Crisco and Saint Clemens Towers). Among other medieval sites there are also Armenian churches of John the Baptist, Saint Sergey (the base of this church’s architectural composition is a rectangle with an altar jog and a round vault; in the church’s walls there are a lot of flagstones with inscriptions in Armenian), Saint George and the Archangels Michael and Gabriel (built in 1408, it was made from the local quarry stone and topped with a octagonal dome) and the Armenian fountain.
The only preserved Muslim house of worship built during the reign of the Ottoman Sultans is the mosque of Mufti-Jami. It was built in 1623 from big ashlar stones. The mosque was rebuilt several times. Having studied the fragments of the original building, experts came to the conclusion that the architecture of the mosque had been influenced by the Byzantine style and the prominent Turkish architect Sinan.
