is an intricate network of compartments and galleries. The ramparts of the Fortress was built by the French and afterwards by the British colonial rulers who completed the entire construction.

The fortress has a dry moat that meanders along
its western side which is typical of the 17th century architectural style. The moat begins from the place where the vegetable market is presently located and culminates into the New Harbour. Of particular significance are the two winged lions of St. Mark, which were incidentally the official emblem of Venice along with two distinct Venetian inscriptions.
The Fortress’s two main gates seem to have somehow withstood the ravages of time and are still very well preserved.
The first gate faces to the Old Harbor's square while the other faces down south. Both the gates are replete with the official emblem of Venice, i.e. the winged lion of St. Mark.
A section of the fortress was demolished by the then British colonial rulers as per the agreement of the 1864 that united Corfu with the rest of Greece.