Chiang Rai Province. At the most northern point of Thailand in Mai Sae, Chiangrai - at the Myanmar border. I visited this location and bought a postcard and mailed it at the mailbox there using an Asean joint stamp in December 11, 2016.
Postcard 2A - Wat Rong KhunI visited this awesome temple of Wat Rong Khun, Chiangrai in December 2015. I mailed the postcard from a mailbox inside the temple compound.
Postcard 2B - Wat Rong KhunWat Rong Khun Temple in Chiangrai, Thailand. Thanks to Petra of Thailand.