On 13 August 1961 a barbed wire fence was erected along the border between East and West Berlin. The wire would quickly be replaced by a concrete wall, complete with lookout towers and armed ...

East German police and soldiers sealed the most frequently used border crossings between East and West Berlin with barbed wire. Soviet troops began to replace the wire with a concrete wall.

It was constructed in just two weeks, initially as a makeshift barbed wire and concrete block wall ... click through and be reminded of how quickly the Berlin Wall went up, and the way it cut ...

Thirty-two years on from the fall of the Berlin Wall, there are now 1,800km ... which witnessed 1.8m migrants flee to Europe. The barbed wire and steel column fence, which spans Hungary's border ...