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. (Photo by Ahmed Jadallah/Reuters)

An aerial view of the Palm Jumeirah in Dubai, October 25, 2010. (Photo by Ahmed Jadallah/Reuters)

Houses on the fronds of the Palm Jumeirah are seen in Dubai, December 21, 2009. (Photo by Matthias Seifert/Reuters)

Heavy fog rolls by early in the morning near the Dubai Marina, November 21, 2007. (Photo by Steve Crisp/Reuters)

A development is seen on one of the islands of The World Islands project in Dubai, January 7, 2012. (Photo by Jumana El Heloueh/Reuters)

A view of the Sheikh Zayed highway in Dubai and some high rise buildings, November 8, 2007. (Photo by Steve Crisp/Reuters)

An aerial image, shows the approaching “red tide”, on the shores of Dubai, April 7, 2009. (Photo by Matthias Seifert/Reuters)

An aerial view is seen of construction work in Dubai, December 21, 2009. (Photo by Matthias Seifert/Reuters)

An aerial view of The World Island in Dubai, October 25, 2010. (Photo by Ahmed Jadallah/Reuters)

An aerial view of the Dubai Marina skyline is seen in Dubai, December 21, 2009. (Photo by Matthias Seifert/Reuters)

The skyline of the Sheikh Zayed highway is seen with the Burj Khalifa, in Dubai, January 7, 2012. (Photo by Jumana El Heloueh/Reuters)

An aerial view of The Palm Jumeirah and Atlantis hotel in Dubai, January 7, 2012. (Photo by Jumana El Heloueh/Reuters)

An aerial view of the Burj Al Arab hotel in Dubai, September 7, 2007. (Photo by Ahmed Jadallah/Reuters)

An aerial image, shows the approaching “red tide”, on the shores of Dubai, April 7, 2009. (Photo by Matthias Seifert/Reuters)

An aerial view of the man-made palm tree-shaped islands in Dubai, September 7, 2007. (Photo by Ahmed Jadallah/Reuters)