El Descanso bombing

On 12 April 1985, the El Descanso restaurant in Torrejon de Ardoz outside Madrid, Spain, was bombed in a terrorist attack. The explosion caused the three-story building to collapse, crashing down on about 200 diners and employees, killing 18 people, all Spanish citizens, and injuring 82 others, including eleven Americans working at the nearby Torrejón Air Base who frequented the restaurant. At the time it was the deadliest attack in Spain since the Spanish Civil War.