World's tallest building opens world's highest observation deck
 

The world's highest observation deck has been opened at the world's tallest building, the Burj Khalifa, in Dubai.

Daredevil tourists can now pay to catch a ride up to the 148th floor of the 2,717ft skyscraper.

The deck is 1,821ft above street level, making it officially the world's highest observation deck according to the Guinness World Records, reports the Daily Mail.