Dubai's Burj Khalifa paid tribute in typically classy fashion to the late Kuwait Emir, Sheikh Sabah Al Ahmad Al Jaber Al Sabah, on Wednesday evening. The tallest building in the world was illuminated with the smiling image of Sheikh Sabah, who passed away at the age of 91 on Tuesday morning in New York. A tweet from the official Burj Khalifa Twitter said: "We extend our deepest condolences to the nation of Kuwait and its people on the passing of His Highness the Emir Sheikh Sabah Al-Ahmad Al-Jaber."