The Grand Canyon is formally one of the world's seven natural wonders, with many tourist attractions and splendid sightseeing opportunities. Created by the might of the tortuous Colorado River and its tributaries, the Grand Canyon has become one of the prevalent and most imposing natural attractions in Arizona. The Grand Canyon offers astonishing views from the various viewpoints at either of the Grand Canyon's rims, with the many mountaineering trails here being popular attractions and activities. Watch the varying light and shadows elongate across the spires and buttes, time passing into the depths of the canyon. Discover striking hiking trails and follow the ravens towering above the north and south rims.