Sentinel Peak, "A" Mountain
The original name of this mountain west of downtown was derived from its function as a lookout point for the Spanish. In 1915, fans of the University of Arizona football team whitewashed a large "A" on its side to celebrate a victory, and the tradition has been kept up ever since -- the permanent "A" is now red, white, and blue. The Pima village and cultivated fields that once lay at the base of the peak are long gone, although John Warner's 19th-century house at the base still stands. During the day, the peak's a great place to get an overview of the town's layout; at night the city lights below form a dazzling carpet.