A woman places a rose into part of the former Berlin wall, Monday Nov. 9, 2009, following a commemoration ceremony for the 20th anniversary of the fall of the Berlin Wall on Nov. 9, 1989, at the wall memorial 'Bernauer Strasse' in Berlin, Germany. (Photo/Fabian Bimmer)AP – Chancellor Angela Merkel and former Soviet leader Mikhail Gorbachev crossed a former fortified border on Monday to cheers of “Gorby! Gorby!” as a throng of grateful Germans recalled the night 20 years ago that the Berlin Wall gave way to their desire for freedom and unity.