Surviving the torturous hell of the Hanoi Hilton

Mike McGrath was a 27-year-old Navy pilot when he was shot down over North Vietnam and taken to a prison in Hanoi – what the POWs sarcastically called the "Hanoi Hilton." Part of the prison, salvaged when the building was torn down, is now on display at the American Heritage Museum outside Boston.

Peering into a recreated cell through a prison door hatch, McGrath said, "This is where the guards could check on you, and they'd harass you day and night."

Inside McGrath exclaimed, "Oh, my God, that's a cement slab. That is my mattress and my bed for years.