Today, the Venetian walls of Heraklion are open to visitors at various points and are used for a series of events and activities.
The Venetian Walls of Heraklion are a large-scale fortification project in the Cretan city of Chania, for the construction of which many engineers and craftsmen worked and huge sums of money were spent. The walls began to be built in 1462 and were essentially completed in 1669, with the occupation of Chania by the Ottomans. The original plans of the Venetian walls were by Gianno da Compofregoso, while they were later modified by Michele Sanmicheli and the final drawing is the work of Giulio Savornian.
The walls have an outline resembling an isosceles triangle, with the northern side being the coastal side and forming the base of the triangle and the Martinego bastion, at the southern end, forming the apex of the triangle. The coastal side of the walls is approximately 2.7 km long. The total length of the walls is approximately 7 km. On its landward sides there are seven bastions, the largest at the top of the triangular enclosure is the Martinego bastion. The wall had the following gates: the Sambionara, Agios Georgios, Jesus, Martinego, Bethlehem, Pantokratoras, Agios Andreas, Dermatas and the Port or Molos.