The Miami Valley Military History Museum in Dayton OH is located on the grounds of the National Cemetery. It is a small museum--no jeeps or tanks or airplanes here--but it has a collection of artifacts dating back to the Revolutionary War, much of which is interesting. Here are some photos from a visit.
The Military History Museum
Equipment from the Revolutionary War, including sabres, flintlock pistol, and powder horn
Civil War, musket balls and Minnie bullets
"Indian Wars", .45/70 cartridges for the US Cavalry Sharps Carbine
Spanish-American War, service cap, New York 79th Regiment.
World War One gas mask
German Mauser "Broomhandle" pistol, World War One
World War One uniforms, and Hotchkiss machine gun
World War Two US Navy "talker" radio helmet. Fans of Star Wars will recognize it as the Rebel Marine Trooper helmet.
World War Two Japanese Arisaka infantry rifle, and officer's sword
World War Two ceremonial Nazi dagger
Korean War, North Korean officer uniform
Vietnam War "bloop gun" grenade launcher
Cold War. Soviet Air Force flight helmet
Cold War, service medals for Soviet troops in Afghanistan
"War on Terror", Iraqi Baath Party Membership Certificate