Wat Suan Dok was founded by King Kue Na of Lanna for the monk Sumana Thera in the year 1370. The temple was built in the centre of Wiang Suan Dok, a walled settlement of the Lawa people older than Chiang Mai itself. The outlines of the fortifications can clearly be traced on satellite images, and remains of some of the earthen walls can still be seen north of Suthep road. King Kue Na's flower garden, which was located here, lent the temple its original name: Wat Buppharam or Wat Suan Dok Mai for short.
According to legend, Maha Sumana Thera, a monk from the Sukhothai Kingdom, after having had a vision discovered a relic of the Buddha which, also according to the same vision, was to be housed in Chiang Mai. Sumana Thera stayed two rainy seasons at Wat Phra Yuen just outside Lamphun at the invitation of King Kue Na while the latter had Wat Buppharam Dok Mai built. When the moment arrived for the relic to be housed in the newly built temple, it miraculously duplicated itself. One of the relics was housed, as intended, in a shrine inside Wat Buppharam Dok Mai, while the other relic was placed on the back of a white elephant which then climbed up Doi Suthep, the mountain directly west of Chiang Mai, where it trumpeted three times and died. Wat Phrathat Doi Suthep was built on that spot to house the second relic.
The main features of Wat Suan Dok are:-
The large 48 meter high bell shaped chedi—built in a Sri Lankan style
The large sala kan prian is directly east of the main chedi. It was built in 1932 by the famous monk Phra Krubra Srivichai
The recently renovated ubosot contains a 4.70 m (15.4 ft) high bronze Buddha statue in the Bhumisparsha-Mudra posture, which was cast in 1504 CE during the rule of King Mueang Kaeo
A grouping of white washed mausoleums, which house the cremation ashes of members of the royal family of Chiang Mai

Source: Wikipedia