Dubai Tower

PRNewswire, London, January 4. DUBAI, UAE - Burj Khalifa Unveiled: Dubai celebrates the opening of Burj Khalifa, the world's tallest building.(PRNewsFoto/EMAAR, Charles Verghese)

Burj Dubai, the world's tallest tower, is seen during the opening ceremony in Dubai January 4, 2010. Dubai opened the world's tallest structure on Monday, and a statement said it was 828 metres (2,717 ft) high. Dubai's ruler Sheikh Mohammed bin Rashid al-Maktoum renamed the tower Burj Khalifa after the president of the United Arab Emirates and the ruler of the neighboring emirate of Abu Dhabi. REUTERS/Matthias Seifert (UNITED ARAB EMIRATES - Tags: BUSINESS CONSTRUCTION CITYSCAPE)

Burj Dubai, the tallest tower which is under construction and is planned to be the tallest building of the world has reached a height of 598.5 meters (1.965 feet) with 158 completed floors, as reported by the Emirates News Agency in Dubai, United Arab Emirates in this Jan. 5, 2008 file photo.(AP Photo/Kamran Jebreili, File)

The Burj Khalifa , the world's 828 meter tallest building is illuminated during the official opening ceremony in Dubai, United Arab Emirates, Monday, Jan. 4, 2010.(AP Photo/Kamran Jebreili)

View of the Burj Dubai, the world's tallest tower, in the Gulf emirate. Dubai was preparing to inaugurate the world's tallest tower, a symbol of the Gulf emirate's unbridled ambitions, amid ongoing fears about a financial catastrophe.(AFP/Karim Sahib)

A general view of the Burj Dubai, the world's tallest tower, in Dubai January 3, 2010. Started at the height of the economic boom and built by some 12,000 labourers, the world's tallest building will open on Monday in Dubai as the glitzy emirate seeks to rekindle optimism after its financial crisis. REUTERS/Ahmed Jadallah

(UNITED ARAB EMIRATES - Tags: CITYSCAPE BUSINESS CONSTRUCTION)

Dubai's three most prominent architectural icons, Burj an-Arab Hotel (L), Jumirah Hotel (R) and Burj Dubai (C), are seen along the coast of Dubai, on December 21. Dubai World began talks Monday with its lenders over its request to restructure 22 billion dollars in debt but has made no specific proposals, a company spokesman said.(AFP/File/Marwan Naamani)

The view from the observation deck located on the 124th floor of the Burj Dubai Tower shows a shadow cast by the Tower on the city of Dubai below January 4, 2010. Started at the height of the economic boom and built by some 12,000 labourers, the world's tallest building will open on Monday in Dubai as the glitzy emirate seeks to rekindle optimism after its financial crisis. REUTERS/Ahmed Jadallah (UNITED ARAB EMIRATES - Tags: CITYSCAPE

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Burj Dubai, the world's tallest building, seen at centre left, in Dubai, United Arab Emirates, Sunday, Jan. 3, 2010. Burj Dubai is over 800 metres (2,625 ft) tall and has more than 160 stores, the most of any building in the world. Besides an observation deck on its 124th floor affording 360-degree views of the entire city, Burj Dubai is home to the world's first Armani Hotel, luxury offices and residences, and a variety of other sophisticated leisure and entertainment facilities. Burj Dubai will ultimately be the place of residence, work and leisure for a community of up to 12,000 people.(AP Photo/Kamran Jebreili)