Birgu, also known by its title Città Vittoriosa, is an old fortified city on the south side of the Grand Harbour in the South Eastern Region of Malta. The city occupies a promontory of land with Fort Saint Angelo at its head and the city of Cospicua at its base. Birgu is ideally situated for safe anchorage, and over time it has developed a very long history with maritime, mercantile and military activities.

The Grand Harbour, also known as the Port of Valletta, is a natural harbour on the island of Malta. It has been substantially modified over the years with extensive docks, wharves, and fortifications.