The Three Cities are Birgu (also known as Vittoriosa), Senglea (also called Isla) and Bormla (also called Cospicua). Birgu is the oldest of the Three Cities and existed well before the arrival of the Knights. It is also the most popular town among the Three Cities due to its historical and cultural wealth. You can find them to the East of the capital city Valletta, right across Grand Harbour.