With the anniversary of the fall of the Berlin Wall (metaphorical fall, the Germans are quite good at engineering), the commemorations are portraying it as the trigger for the fall of communism. However the event occurred about two weeks after the Hungarian government authorised multiparty elections, so I wonder whether undue significance has been placed on the Berlin Wall because of it's obvious symbolism.
I remember at the end of 1989 the news seemed to be coming from a different Eastern European capital each week as one by one the old regimes fell like dominos. The Romanian revolution was probably the most dramatic although not as I remember for the events which seem most significant in hindsight- the Ceaucescus on the balcony and their later execution- but for the brief civil war that occurred between the army and the secret police. The Western reporters would be on the streets filming the Army when shots would be fired from a tower by secret police snipers and everyone would react but the snipers would have disappeared by the time the army got there.