Building the world's largest cruise ship
When Royal Caribbean launches its $1.2 billion 'Oasis of the Sea' in 2009, it will carry up to 5,400 passengers and will be as tall as a 12-story building, as long as four football fields, and wider than the Panama Canal.
Special report: Mega-Projects
World Trade Center
With an estimated $20 billion pricetag, the WTC redevelopment is one of the most expensive ongoing projects in the world. (
Reliance Industries is spending $6 billion to expand a massive refining hub in India that is one-third the area of Manhattan and will one day process 5% of the world's gasoline. (