London mayor Boris Johnson salutes photographers as rides a bicycle in front of Burj Khalifa, the world’s tallest tower, during his visit to Dubai, on April 16, 2013. AFP PHOTO/KARIM SAHIB (Photo credit should read KARIM SAHIB/AFP/Getty Images)
London mayor Boris Johnson salutes photographers as rides a bicycle in front of Burj Khalifa, the world’s tallest tower, during his visit to Dubai, on April 16, 2013. AFP PHOTO/KARIM SAHIB (Photo credit should read KARIM SAHIB/AFP/Getty Images)