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The Unter den Linden boulevard is illuminated during a light rehearsal for the upcoming Festival of Lights in Berlin, October 13, 2009. REUTERS/Tobias Schwarz

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The Quadriga sculpture atop the Brandenburger Tor gate is illuminated during a light rehearsal for the upcoming Festival of Lights in Berlin, October 13, 2009. REUTERS/Tobias Schwarz

Visitors

Visitors pass the illuminated Brandenburger Tor gate during a light rehearsal for the upcoming Festival of Lights in Berlin, October 13, 2009. REUTERS/Tobias Schwarz

The

The Berlin cathedral is illuminated during the opening night for the Festival of Lights in Berlin, October 14, 2009. REUTERS/Tobias Schwarz

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A general view shows the illuminated city skyline with (L-R) the Reichstags building, victory column, television tower and the Berlin cathedral during the Festival of Lights in Berlin, October 14, 2009. REUTERS/Fabrizio Bensch

The

The Berlin concert hall is illuminated during a light rehearsal for the upcoming Festival of Lights in Berlin, October 13, 2009. REUTERS/Tobias Schwarz

The

The Berlin cathedral is illuminated during the opening night for the Festival of Lights in Berlin, October 14, 2009. REUTERS/Tobias Schwarz

The

The Berlin cathedral and the television tower are illuminated during the opening night for the Festival of Lights in Berlin, October 14, 2009. REUTERS/Tobias Schwarz

The

The Oberbaumbruecke bridge across river Spree is illuminated during the opening night for the Festival of Lights in Berlin, October 14, 2009. REUTERS/Tobias Schwarz