The museum is located in Perquín, in the Morazán Department of El Salvador.

This area was dominated during the war by the Farabundo Martí National Liberation Front (FMLN).

The museum includes an exhibit honoring the FMLN's radio network, Radio Venceremos, as well as the weaponry used during the war years and a downed helicopter that had carried military leader Lt.

Colonel Domingo Monterrosa Barrios, a leader of the Atlácatl Battalion.

Former members of the guerrilla staff the exhibits and answer guests' questions.