The Museum of Missouri Military History is hosting its annual Open House Weekend. Come see re-enactors from the Revolutionary War to the Vietnam War exhibiting uniforms, gear, weapons, food and more for each of their time periods. Weapons demonstration will be on Saturday at 2 p.m. Event is free and open to the public. Saturday hours are 10 a.m.-5 p.m. and Sunday hours are 10 p.m.-4 p.m.