People hold signs reading 'I am Charlie' during a rally in Monaco on January 8, 2015, a day after a deadly attack on the Paris headquarters of French satirical weekly Charlie Hebdo. (VALERY HACHE/AFP/Getty Images)
Iraqi Christians light candles inside a shrine in the grounds of Mazar Mar Eillia (Mar Elia) Catholic Church on December 12, 2014 in Erbil, Iraq. (Matt Cardy/Getty Images)
The building complex Block IV of the 'colossus of Ruegen'- complex in Prora on the Baltic Sea island of Ruegen, north-eastern Germany, July 21, 2011. (STEFAN SAUER/AFP/GettyImages)