United States

Key Facts About United States

• •The United States has the world's largest economy by nominal GDP.
• •It is the third-largest country in the world by both area and population.
• •The US has more UNESCO World Heritage Sites than any other country.
• •Silicon Valley in California is the world's leading hub for technology innovation.
• •The Grand Canyon was carved by the Colorado River over millions of years and is 277 miles long.

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