The Kara Moussa Pasha Mosque is a fascinating example of Rethymno's layered history, where Venetian architecture meets Ottoman transformation.

Originally the Venetian Monastery of Santa Barbara, it was converted into a mosque after the city's fall in 1646, named after the Ottoman naval commander Kara Moussa Pasha. The complex features impressive domed structures, a minaret's base, and a triple-arched stone fountain used for ritual ablution. What makes it truly special is its lush, tranquil garden, filled with historic Ottoman tombstones and stone remnants. This "secret garden" setting serves as a peaceful retreat within the city and a testament to the multicultural heritage of Rethymno, frequently hosting archaeological exhibitions and cultural events.