Conceived as an efficient and humanitarian prison, the panopticon, or “model prison,” was truly a prisoner’s worst nightmare. Designed by Jeremy Bentham, this prison was home to many famous Cuban rebels, including a young Fidel Castro in 1953. The walls of the prison are now crumbling and collapsing but it continues to stand as a constant reminder of the stories and pain of the prisoners that occupied its cells and as an important relic of Cuba’s turbulent past.