Las Tunas' most evocative sight is in the former home of Carlos Leyva González, an Olympic fencer killed in the nation's worst terrorist atrocity: the bombing of a Cubana airliner in 1976. Individual photos of victims of the attack line the museum walls, providing poignant reminders of the fated airplane.

On October 6, 1976, Cubana de Aviación Flight 455, on its way back to Havana from Guyana, took off after a stopover in Barbados' Seawell airport. Nine minutes after clearing the runway, two bombs went off in the cabin's rear toilet causing the plane to crash into the Atlantic Ocean. All 73 people on board – 57 of whom were Cuban – were killed. The toll included the entire Cuban fencing team fresh from a clean sweep of gold medals at the Central American Championships. At the time, the tragedy of Flight 455 was the worst ever terrorist attack in the western hemisphere.