A pigeon flies in front of a piece of art entitled "Work in Progress" by artists Manon Awst and Benjamin Walther created outside the German Embassy in London November 9, 2009. The Ice Wall sculpture was created to commemorate the 20th anniversary of the fall of Germany's Berlin wall. Reuters Pictures logo Reuters Pictures 27 months ago

A pigeon flies in front of a piece of art entitled "Work in Progress" by artists Manon Awst and Benjamin Walther created outside the German Embassy in London November 9, 2009. The Ice Wall sculpture was created to commemorate the 20th anniversary of the fall of Germany's Berlin wall.