Tha Phae Gate is part of the eastern wall of the old city in Chiang Mai. Built back in 1296 during the founding of Chiang Mai. Originally there was and outer and inner gate. The outer gate was named Tha Phae Gate while the inner gate was called Chiang Ruak Gate, which is the name of a nearby village. Over time, the outer gate was dismantled and the inner gate became known as Tha Phae Gate.
Visitors used to be able to go on top of the gate but the access has been blocked off and this is not allowed anymore.