Vista of the Tiscapa Lagoon and the city of Managua.Tiscapa Lagoon, located within the Tiscapa Lagoon Natural Reserve is just south of Managua's Historical Center. Leading up to the lagoon is ''Calle del Comercio'' (Commerce Street), which leads to the ''Monumento al Liberalismo'' (Monument to Liberalism), built in the late 1930s by the Liberal party in honor of President Anastasio Somoza García. Nearby is the Monument to Sandino which is a silhouette of Augusto C. Sandino, one of Nicaragua's national heroes. The monument stands 59 feet tall. The monument was proposed by Ernesto Cardenal and is protected by the Nicaraguan military. The Sandino monument was constructed on top of the wreckage of the old Mozarabic-style presidential palace commissioned by President Sacasa in the late 1920s but long used by the Somoza Family as their personal residence. Also on the crater lip of Tiscapa is the ''Mazmorras'', a prison where current President Daniel Ortega and many other political prisoners were tortured during the Somoza regime.