Doi Suthep is the most famous temple of Chiang Mai, on a hilltop outside the city.  Legend has it that a monk placed a Buddha statue on the back of an elephant, determined to build a temple wherever the elephant may stop.  The elephant charged forward, climbing a tall hill.  Finally, at the crest of the hill, it stopped and trumpeted, signaling the site of the new temple.  The result is a gem of Thai architecture, kept in pristine condition and gleaming in the sun above the city.  You can see the light winking off the stupa from all around the city.