Walk right up to the rim of the Grand Canyon and watch the ground fall away, taking your breath with it. The drop is a mile straight down to the skinny green Colorado River. But the wide walls of canyon rock catch your eye first. They spread out in all directions, farther than you can see, a never-ending stack of soft rainbow colors. You can't take a bad picture at the Grand Canyon, and yet no picture truly captures it. When he visited in 1903, President Theodore Roosevelt declared that the Grand Canyon was the "one great sight every American should see." Today, Grand Canyon National Park protects a rich Native American heritage, beautiful geology, endangered species, and miles of exciting hikes. In 2019, Grand Canyon National Park, will celebrate its 100th anniversary. See why, each year, the Grand Canyon continues to be one of America's favorite destinations.