It contains the Escuela de Comandos (Commando School). In 1997, a replica of the Japanese Diplomatic Residency was secretly built there. Tunnels were dug and the rescue plan was practiced again and again until perfect for the "Operation Chavin de Huantar" that ended the Japanese embassy hostage crisis. it still existed and was considered a monument to those who took part in the rescue, and sometimes still used in training.