In August 1961, a few railway cars and barbed wire divided East Germany from West. It was a barrier that would be extended and become increasingly more sophisticated, a technological counter to each escape attempt. Computer imagery reconstructs how the Berlin Wall grew from a meager obstacle to a 97 mile barrier of concrete slabs, watchtowers and guards.

Cast:Clayton Nemrow,

Genre:Documentary, History,

country:none

Production:ZDF, History,