Ubon Ratchathani National Museum occupies a former city hall near the centre. Its collections cover prehistoric finds, Dvaravati and Khmer material, Buddhist art, textiles, and the culture of the lower Mun and Mekong region.
It is a useful first stop if you are heading onward to Pha Taem, Khong Chiam, or the Lao border. The exhibits help explain why Ubon feels culturally close to Laos while still firmly part of Thailand.