The Grand Canyon (18 images)

The Grand Canyon is one of the Wonders of the World. The colors of the canyon's walls change as the sun moves through the sky. Spanish conquistadors were the first Europeans to see the canyon in 1540, but the steep walls and rugged terrain stymied them. It wasn't until John Wesley Powell rafted down the Colorado River in 1869 that the canyon was mapped.

Now it's one of the most popular national parks in the United States. Hundreds of thousands people visit the Canyon every year....
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The Grand Canyon is one of the Wonders of the World. The colors of the canyon's walls change as the sun moves through the sky. Spanish conquistadors were the first Europeans to see the canyon in 1540, but the steep walls and rugged terrain stymied them. It wasn't until John Wesley Powell rafted down the Colorado River in 1869 that the canyon was mapped.

Now it's one of the most popular national parks in the United States. Hundreds of thousands people visit the Canyon every year. Despite the crowds, it's a place of mystery and majesty.
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