Hoa Lo prison, built by French colonialists in 1896 - called "Hanoi Hilton" by American POWs in North Vietnam
Our Hanoi tour guide "Kha" - he was N. Vietnam govt. worker during "The American War" - and Margherita
Inside Hoa Lo prison wall. Note electric fence and protruding glass shards on top
Placard reads "Individual fetters - Hoa Lo prison"