10 Best National Parks in the US That Everyone Should Visit at Least Once

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8Grand Canyon National Park, Arizona

The Grand Canyon is one of the world’s most awe-inspiring natural wonders, a massive chasm carved by the Colorado River over millions of years. Stretching 277 miles, the canyon plunges to depths of over a mile, revealing layers of ancient rock in colors that shift with the sunlight.

Visitors can marvel at the views from the South Rim, which is open year-round, or the quieter North Rim, accessible only during warmer months. Activities range from hiking down into the canyon to thrilling helicopter tours and river rafting adventures.