October 3 marks the German Unity Day, a day that celebrates the reunification of West Germany and East Germany into modern Germany in 1990 following the fall of the Berlin Wall in 1989 and the end of the Cold War. /VCG Photo

People in Germany took to the street to celebrate the historic day in Berlin by taking part in a series of festivities. /VCG Photo

German Chancellor Angela Merkel said that Germany Unity is a "continual process" and a "constant mission that affects all Germans" when she delivered a speech during a reception to celebrate the reunification in the country's northern city of Kiel. /VCG Photo

Germany was divided into two parts at its center after World War II, and its former allies occupied each. The West part was ruled by the Anglo-American Federal Republic and the East part by the Communist-led German Democratic Republic. /VCG Photo