Atlanta International Airport is one of the busiest in the world, handling 2,700 landings and take-offs daily.

A look at the computer technology and state-of-the-art electronic control systems that are used to manage the millions of New Yorkers who pass through Grand Central Terminal during the week.

An exploration of the Panama Canal, the shortest sea route from North America's east to west coast, with 14,000 ships travelling through it each year.

A look at the Cirque du Soleil's production "O", with a world class ensemble of acrobats, synchronised swimmers, divers, and actors.

With over 150,000 calls each year, the District of Columbia Fire and EMS is one of the busiest all-hazardous agencies in the U.S.

An exploration of the biggest, busiest and most significant gateway in North America, the Port of Los Angeles.