At The Top, Burj Khalifa is a series of observation decks on the 124th and 125th floors of the Burj Khalifa which opened to the public on 5 January 2010. At 452 m, it boasted the highest manmade observation deck in the world at the time This record was subsequently broken and regained twice with the respective openings of the At The Top, Burj Khalifa SKY and The Lounge, Burj Khalifa levels.