Dubai opened a restaurant on Sunday which is 422 meters high on the 122nd floor of the world's tallest building, Burj Khalifa, its developers said.
At.Mosphere in Dubai's 828 meters building is "one of the deluxe luxury dining and lounge experiences in the world", said Emaar Hospitality Group, an arm of enormous property developer Emaar.
At two levels below the tower's observation deck, the "world's highest restaurant" can host "over 210 guests and features a spacious entrance hall, a main dining floor, private dining rooms and exhibit cooking stations".
In addition to apartments, offices and Italian designer Giorgio Armani's signature hotel, the construction has an observation deck on the 124th floor, open to visitors at an entry fee of at least 100 dirhams ($27) per adult.
Emaar spent $US1.5 billion ($1.52 billion) on the tower, named after Abu Dhabi's President Sheikh Khalifa bin Zayed al-Nahayan who came to the help of Dubai, hit by the global financial crisis.
Oil-rich Abu Dhabi extended a lifeline of $US10 billion ($10.14 billion), on top of the same amount from the UAE central bank, to bond out Dubai's heavily-indebted state firms in 2009.