My rating:
Wat Hua Wiang Rangsi sits right on the riverside at the north end of That Phanom city. The little temple probably wouldn't rate a mention if it wasn't for the unusual murals decorating the walls of the ordination within the small compound.
The altar and some of the murals of the main chapel
The age of the temple is unknown, but the present ordination hall (ubosot) was built from 1917 to 1921. The murals, which are done in tempura, giving them an unusual pen-and-ink look, were executed by a painter from Bangkok as the chapel was being finished. The murals may have been common 100 years ago, but you won't see many of them in temples today, when they're usually painted in bright colors, though often with less detail. Like most murals in Thai temples, the scenes depict episodes from the lives of Buddha (the Jataka) as well as from the Thai version of the Hindu epic, the Ramakien.