Dabudong War Memorial Museum covers one of the fiercest battles of the Korean War, fought along the Nakdong River line when the Busan Perimeter was under pressure. The displays focus on weapons, battlefield artefacts, memorial tablets, and the role of soldiers, police, and civilians in the fighting.
It is a specialist stop rather than a broad museum, but it adds useful context if you are travelling between Gumi and Daegu or following Korean War sites in the southeast.