Yet,every day,Americans depend on their transportation system to keep them, and the largest economy in the world, on the move.

VOA: special.2010.01.11

The team used the most powerful telescope in the world - the National Science Foundation's Very Long Baseline Array.

VOA: special.2009.01.20

In sub-Saharan Africa we have the highest death rates in the world, and they are around seven times higher than that."

VOA: special.2009.09.28

In the United States, the legal age to drink alcohol is twenty-one -- one of the highest in the world.

VOA: special.2009.04.02

In fact, the publication Science Watch listed her as the 49th most-cited researcher in the world during that 20-year period.

VOA: special.2009.01.27

The World Health Organization says alcohol abuse is the third leading cause of death and disability in the world.

VOA: special.2011.03.08

In fact, the publication Science Watch listed her as the forty-ninth most-cited researcher in the world during that twenty-year period.

VOA: special.2010.05.18

Rudolf found it hard to believe that there was someone in the world who did not know what violin was.

VOA: special.2010.05.08

Adair said one of the best honors in the world was to have John Wayne play him in a movie.

VOA: special.2009.03.22

But the look on everyone's face, when you are finished and packing, it is the best smile in the world;

VOA: special.2009.03.22

This week on our program, we tell you about three people who are working to make a difference in the world.

VOA: special.2010.05.03

Today we look up into the skies to explore the past and present of the tallest buildings in the world.

VOA: special.2010.03.31

But when we enter the Sistine Chapel, we look up to see the most beautiful ceiling in the world.

VOA: special.2010.02.03

Except for Puerto Rico itself, more Puerto Ricans live in New York City than in any other place in the world.

VOA: special.2011.01.21