Photo 1 : A cameraman films an enlarged Stasi file on an ordinary East German citizen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 2 : A Cold War-era sign warning visitors they are leaving the American sector of East Berlin is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 3 : A reproduction of the Checkpoint Charlie border crossing is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 4 : A section of the Lichtgrenze light installation is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall along a section of the former Wall on November 8, 2014.
Photo 5 : A section of the Lichtgrenze light installation is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall along a section of the former Wall on November 8, 2014.
Photo 6 : A section of the Lichtgrenze light installation is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 7 : A tourist browses Soviet kitsch for sale during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 8 : A visitor waves to a friend as he stands next in front of a section of the former Berlin Wall during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 9 : An employee activates a motor to file through Stasi files on ordinary East German citizens during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 10 : An employee activates a motor to file through Stasi files on ordinary East German citizens during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 11 : An employee holds a Stasi movie film recording during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 12 : An employee looks through Stasi files on ordinary East German citizens during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 13 : An employee looks through Stasi files on ordinary East German citizens during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 14 : Cassette tapes containing Stasi recordings are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 15 : Dagmar Hovestaedt, spokeswoman for the German Federal Commissioner for the Stasi Records (BStU), shows an enlarged Stasi file on an ordinary East German citizen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 16 : Dagmar Hovestaedt, spokeswoman for the German Federal Commissioner for the Stasi Records (BStU), speaks during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 17 : Dagmar Hovestaedt, spokeswoman for the German Federal Commissioner for the Stasi Records (BStU), speaks during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 18 : Leather cases containing Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 19 : Shadows are seen cast from section of the Lichtgrenze light installation during celebrations for the 25th Anniversary of the fall of the Berlin Wall on a section of the former Wall on November 8, 2014.
Photo 20 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 21 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 22 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 23 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 24 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 25 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 26 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 27 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 28 : Stasi documents are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 29 : Stasi files on ordinary East German citizens are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 30 : Stasi files on ordinary East German citizens are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 31 : Stasi files on ordinary East German citizens are seen during a tour of the Stasi secret police archives in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 32 : The Berlin Fernsehturm, or TV tower, is seen during a lamp from the Lichtgrenze light installation during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 33 : The Brandenburg Gate is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 34 : The Brandenburg Gate is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 35 : The Checkpoint Charlie border crossing is seen during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 36 : The former Stasi secret police headquarters are seen in Berlin, Germany, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 37 : The Reichstag, the seat of the German federal parliament, is seen behind a section of the Lichtgrenze light installation during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 38 : The Reichstag, the seat of the German federal parliament, is seen behind a section of the Lichtgrenze light installation during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 39 : The Reichstag, the seat of the German parliament, is seen behind sections of the Lichtgrenze light installation during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 40 : Tourists embrace in front of shadows cast from section of the Lichtgrenze light installation during celebrations for the 25th Anniversary of the fall of the Berlin Wall along a section of the former Wall on November 8, 2014.
Photo 41 : Visitors pass a section of the former Berlin Wall during celebrations for the 25th Anniversary of its fall on November 8, 2014.
Photo 42 : Visitors pass a section of the former Berlin Wall with shadows from the Lichtgrenze light installation cast on it during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.
Photo 43 : Visitors pass a section of the the Lichtgrenze light installation in front of the city's Fernsehturm, or TV tower, during celebrations for the 25th Anniversary of the fall of the Berlin Wall, on November 8, 2014.