The famous building of Cuartel Moncada. Here, the 26 of July 1953 a small army leaded by Fidel Castro tried an assault that failed, but became the first real act of the cuban revolution.
On the walls are still visible the holes made by the shots.
Nice museum, worthwhile to check, guide was well informed and into details.
During the walk you can hear and see very important things in modern cuban history.