Tourists visit Blue Mosque on January 4 in Istanbul. River traffic... News PhotoBlue Mosque,Europe,Horizontal,International Landmark,Istanbul,Mosque,Tourism,Tourist,Visit,WeatherPhotographer Collection: AFP 2013 AFPTourists visit Blue Mosque on January 4, 2013, in Istanbul. River traffic was brought to a halt this morning due to fog conditions. AFP PHOTO/BULENT KILIC (Photo credit should read BULENT KILIC/AFP/Getty Images)