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German Chancellor Angela Merkel, right, and Mayor of Germany's capital Berlin, Klaus Wowereit walk along remains of the Berlin Wall at the Berlin Wall memorial site at Bernauer Strasse in Berlin, Germany, Sunday, Nov. 9, 2014. 25 years ago - on Nov. 9, 1989 - the East-German government lifted travel restrictions and thousands of East Berliners had pushed their way past perplexed border guards to celebrate freedom with their brethren in the West. (AP Photo/Steffi Loos)