Soon after last night's attacks on Paris, in which more than 120 people were killed, other cities began projecting the colors of the French flag onto landmarks in a brilliantly colored display of solidarity around the world.
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The arch at Wembley Stadium and the sails of the Sydney Opera House were lit up, while the Paris Las Vegas Hotel dimmed the lights on their replica Eiffel Tower in respect.
As night falls in Europe, expect to see many more iconic locations ablaze in the tricolore of blue, white and red.