A sea-port on the Mediterranean, about midway between Carmel and Joppa. The city was built by Herod the Great and named after Augustus his patron. It became the seat of the governors of Palestine, and the place where their army was quartered. Paul was sent thither to protect him from the intrigues of the Jews at Jerusalem. Acts 23:23,33 . He was imprisoned there during two years. Acts 25:1-13 . It was there that Peter opened the door to the Gentiles in the case of Cornelius and his friends. Acts 10:1,24 . The harbour was massively built, with a breakwater and landing wharfs.