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Free Syrian army fighters stand atop of a hill as the moon is seen in the background in the south of Nawa city, in Deraa Governorate

Alaa Al-Faqir /Reuters

Free Syrian army fighters stand atop of a hill as the moon is seen in the background in the south of Nawa city, in Deraa Governorate, Syria

People visit the "Step into the Void" glass skywalk overlooking the French Alps on top of a 3842-metre peak in Chamonix on December 23, 2013. The installation, which opened to the public after three years of development, is made of three layers of glass and can withstand winds of up to 200kmph.

Jean-Pierre Clatot/AFP

People visit the Step into the Void glass skywalk overlooking the French Alps on top of a 3,842m peak in Chamonix on Monday. The installation, which opened to the public after three years of development, is made of three layers of glass and can withstand winds of up to 200kmph.