Our very first Geographics video was about a Russian prison, Pyatak, made famous by its remote location and by the regime of isolation to which its inmates are sentenced. In today’s Geographics, we will explore another prison, which in a way is the radical opposite of Pyatak. This correctional facility is located in one of the most densely populated districts of a great European capital. Its residents are unlikely to complain about being left alone … if anything, overpopulation is more of a problem. So, welcome, or should I say Bienvenues to La Santé Prison in Paris, France.