The Forest of Remembrance, formerly known as the Forest of the Departed, is a memorial garden located in the park of Parque del Buen Retiro in Madrid, Spain that commemorates the 191 civilian victims of the 2004 Madrid train bombings on the 11th of March 2004 and the special forces agent who died when the seven suicide bombers subsequently killed themselves on March 11th 2004 while under siege by security forces in their apartment block. Wikipedia