There are many ancient Roman sites in Zliten, such as the coastal Villa of Omira ('Darbuk Omira' ) where several impressive mosaics were discovered, and the Castle in Al-Jumaa. The town also contains the Mausoleum and Mosque of Abd As-Salam Al-Asmar, Mosque of Abu-Minjal, Mosque of Albaza and many other mosques. There is some fine Arabic calligraphy in sandstone on top of the outer pillars of the building saying "al-mulk-'illah" ("Everything to Allah"). The town is famous for its olives, palm trees and citrus fruits along beautiful coastal shores. The Slat Abn Shaif Synagogue () in Zliten was a historic synagogue and Lag Ba'omer pilgrimage site for Libyan Jews. It was over 900 years old and was destroyed in the 1980s by Gaddafi and replaced by apartments.