The icebreaker “Seeloewe” (“Sea Lion”) makes its way through ice on the Spree river on February 6, 2012 in Berlin, Germany. (Photo by Sean Gallup/Getty Images)

Polar bears cuddle while standing on ice in their outdoor enclosure at the Berlin Zoo on February 6, 2012 in Berlin, Germany. (Photo by Sean Gallup/Getty Images)

A view of the ice on the river Elbe on February 6, 2012 in Hamburg, Germany.The current cold front that has claimed over 200 lives in eastern Europe makes its way west. (Photo by Stuart Franklin/Getty Images)

A tourist jumps across the snow-covered stellae at the Memorial to the Murdered Jews of Europe, also called the Holocaust Memorial, in front of the television tower, or Fernsehturm, on February 6, 2012 in Berlin, Germany. (Photo by Adam Berry/Getty Images)

The full moon rises behind the television tower and trees with bare branches on February 6, 2012 in Berlin, Germany. (Photo by Adam Berry/Getty Images)