In 1961, overnight a concrete border went up, dividing the city of Berlin into two parts - East and West. The story of the Berlin Wall holds up a mirror to post-WWII politics and the Cold War Era when the United States and the USSR were enemies, always on the verge of war. Author Nico Medina explains the spy-vs-spy politics of the time as well as what has happened since the removal of one of the most divisive landmarks in modern history.

What was the Berlin Wall? -- "You must go to Berlin" -- An iron curtain -- Blockade -- Cold War -- The wall -- The first victims -- Checkpoint Charlie -- "Ich bin ein Berliner" -- Higher and higher -- "Tear down this wall!" -- Germany united -- Timelines.