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BERLIN, GERMANY - MARCH 15: A visitor photographs the sculpture "Woman of Venice IV" by Alberto Giacometti in the Kommandantenhaus, the newly-added building to the Berggruen Museum, on March 15, 2013 in Berlin, Germany. The Berggruen Museum, housing the modern art collection of collector and dealer Heinz Berggruen, has been expanded with an extra building and a garden. Berggruen sold the collection to the city of Berlin at price well below its actual value, and it arrived in 1996 along with the collector himself, who had been in exile from the city for six decades. His heirs continue to contribute to the works on display, which include pieces by Pablo Picasso, Alberto Giacometti, Georges Braque, Paul Klee and Henri Matisse. (Photo by Adam Berry/Getty Images)

BERLIN, GERMANY - MARCH 15: A visitor photographs the sculpture "Woman of Venice IV" by Alberto Giacometti in the Kommandantenhaus, the newly-added building to the Berggruen Museum, on March 15, 2013 in Berlin, Germany. The Berggruen Museum, housing the modern art collection of collector and dealer Heinz Berggruen, has been expanded with an extra building and a garden. Berggruen sold the collection to the city of Berlin at price well below its actual value, and it arrived in 1996 along with the collector himself, who had been in exile from the city for six decades. His heirs continue to contribute to the works on display, which include pieces by Pablo Picasso, Alberto Giacometti, Georges Braque, Paul Klee and Henri Matisse.  (Photo by Adam Berry/Getty Images)