Most people who go to Burj Khalifa end up at either of the observation decks – Floor 124 or Floor 148. I instead decided to visit the At.mosphere restaurant which at a height of 1450 feet is regarded as the world’s highest restaurant.
The entry on the ground is through the Armani hotel where the staff at the reception check your booking. With regards to the dress code, the website mentions ‘smart elegant’. I had worn a formal shirt with jeans and it worked fine. Since I had sports shoes on, the guys at the reception gave me a pair of formal shoes to put on before going to the restaurant. But in order to avoid last minute hassles, I would still suggest to follow the dress code to the T rather than having to argue with them at the reception.
The lift goes straight to the 124th floor (in a matter of seconds) and you end up with a popping sound in your ear due to the change in altitude. Once you arrive at the 124th floor, you have to come down the steps to the 123rd floor where on one side is the lounge and on the other is the more expensive restaurant.