Banna was a fort which lies towards the western end of Hadrian\'s Wall.It is situated in the Roman province of the Britannia.

Banna is engrossed by a former farm called Birdoswald.It is the only site on Hadrian\'s Wall at which significant occupation in the post-Roman period has been proven in 2005.It is subject to a long-term archaeological programme under the long time directorship of Tony Wilmott.

It is one of the well conserved place of the 16 forts along Hadrian\'s Wall.