A waitress serves snacks at At.mosphere, the world's highest restaurant in Dubai. The restaurant is situated 442 meters high on level 122 of the Burj Khalifa, the world's tallest building. A waitress serves snacks at At.mosphere, the world's highest restaurant in Dubai. The restaurant is situated 442 meters high on level 122 of the Burj Khalifa, the world's tallest building. (Kamran Jebreili/Associated Press)

Dubai has taken the concept of haute cuisine to new heights, with the opening of a fine-dining venue 442 metres up in the sky.

Touted by developers in the United Arab Emirates as "the world's highest restaurant", the At.mosphere lounge began seating guests on Sunday on the 122nd floor of the world's tallest building, the 828-metre Burj Khalifa.

Toronto's revolving 360 Restaurant in the CN Tower is considered by Guinness World Records authorities to have the World's Highest Wine Cellar, 351 metres above ground.

The UAE developers behind At.mosphere plan to apply to Guinness to take the title of World's Highest Restaurant.

At.mosphere can accommodate more than 210 guests and also boasts private dining rooms as well as a main dining floor, according to developers.

The Dubai restaurant can be accessed by an express elevator that takes nearly a minute to ascend to the 122nd floor.

Prices on the menu are also steep as one might expect, according to Reuters. Entrees are priced at an average $93, while appetizers are in the $50 range.