The great Crusader citadel of Acre.Destroyed by the Mamluks, and its huge underground rooms and tunnels remained hidden until the 40's. The British were using an old Ottoman prison, and some Jewish prisoners found it during a prison break attempt.Now it's a very cool and well done museum.

The great Crusader citadel of Acre.Destroyed by the Mamluks, and its huge underground rooms and tunnels remained hidden until the 40's. The British were using an old Ottoman prison, and some Jewish prisoners found it during a prison break attempt.Now it's a very cool and well done museum.