 The Fortezza ( Greek : Φορτέτζα , from Italian for " fortress " ) is the citadel of the city of Rethymno in Crete , Greece . It was built by the Venetians in the 16th century , and was captured by the Ottomans in 1646 . By the early 20th century , many houses were built within the citadel . These were demolished in the 1960s to allow for the construction of a modern residential area, and the Fortezza was converted into a museum. февруари 2018 г. ... The Fortezza is a Venetian fortress in Rethymno, Crete.