The Ancient City in Samut Prakan (Muang Boran)
Phra That Bang Phuan is situated at Amphoe Mueang Nong Khai. Phra That is believed to house the relics of the Lord Buddha brought from India. The old traditional history known as the Tamnan Uragkha That mentions the existence of the relics.
It is believed to be constructed in the reign of King Chaiyachettha Thirat. The construction is mentioned in the Lan Chang chronicle.