The Antonia Fortress was a military fortification and Josephus said that the whole Fortress of Antonia appeared as one tower and therefore he referred to it as the Tower of Antonia. Josephus gave us meticulous detail; he said the courts and baths resembled a palace. It was rectangular in shape, measuring about 490 feet long (east to west) by 260 feet wide (north to south), with walls about 60-75 feet high. Each corner had a high tower, three of which were 75 feet high. The tower in the northwest corner, which overlooked the Temple area, however, was about 115 feet high. According to Acts 21 stairs connected the Antonia Fortress with the Temple area. The northwest tower was later known as Strato’s Tower.



The Fortress of Antonia was partly surrounded by a deep ravine 165 feet wide. It functioned as headquarters for the Roman soldiers, a palace and a barracks. Herod constructed a secret passage from the fortress to the Temple and Josephus described that this is where Aristobulus was killed.

The Fortress of Antonia was built on a rock hill, which was much higher than the Temple area (75 feet), on the northwest side. The castle’s 4 walls were interesting:
The western wall was built upon the edge of the cliff overlooking the Tyropoeon Valley.
The north wall was directly across the hill Bezetha and there was a deep mote between them. The rock hid the Temple from view on this side according to Josephus.
The southern wall one could see over the entire Temple area.
The eastern wall overlooked the Pool of Bethesda and the Kidron Valley.

Josephus is the authoritative source for the description of the Antonia Fortress and he wrote about its interior. It is described as a small city, a palace for a king and a barracks for many soldiers. There were apartments, cloisters, baths and large courtyards. There were also stairs that led down from the Fortress to the porticoes of the Temple court at the extreme north side. It is also written that there was a deep passageway underground, which went from the fortress to the Court of Israel, mainly for uprisings and emergencies.

When Titus initiated his extreme assault into the Temple area it was from the Antonia Fortress.

The Northwest Corner of the Temple (see picture below).

These photos are from an archaeological reproduction of first century Jerusalem, located in Jerusalem.

The Fortress of Antonia was built in 35 B.C. and named in honor of Herod’s friend and Roman Triumvir Marcus Antonius also known as Mark Antony. It was actually Mark Anthony who had requested that the Senate make Herod King of Judea as an eastern boundary to the Roman Empire. At some point the Romans took over the Antonia Fortress and placed a garrison there.