Angela Merkel held ceremonies to mark 20 years since collapse of Berlin Wall . Thousands of people converged on symbolic Brandenburg Gate in center of Berlin . Read more in our Autumn of Change special report . She says Germany still has far to go in its unification process .
Angela Merkel held ceremonies to mark 20 years since collapse of Berlin Wall . Thousands of people converged on symbolic Brandenburg Gate in center of Berlin . She says Germany still has far to go in its unification process .