What is the most famous American landmark in Arizona?
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The most famous American landmark in Arizona is the Grand Canyon. This massive, breathtaking geological formation was carved by the Colorado River and spans over 277 miles in length, up to 18 miles in width, and more than a mile deep. The Grand Canyon is famous for its vivid colors, rock formations, and panoramic views, attracting millions of visitors annually. It is a UNESCO World Heritage site and one of the Seven Natural Wonders of the World, offering various outdoor activities, including hiking, rafting, and scenic viewpoints.