The Baluarte de San Diego is a bastion in Intramuros, part of the Spanish colonial fortification in the walled city of Manila in the Philippines.

Several developments were added in the course of time such as addition of semi-circular structures at the base called orillons or little ears making the bastion resemble an ace-of-spades shape.

[1] Baluarte de San Diego was an ace-of-spades bastion built on the southwestern corner of Intramuros.

[1] The archaeological excavation of Bastion de San Diego was conducted by the Intramuros Administration and the National Museum from 1979 up to December 1982.

The said monument was supposed to be sponsored by The Chicago Daily Times whose goal was "to commemorate one of the great epics in the struggle for human freedom–the liberation of the Philippines."

Jack P. Whitaker, then Scout Commissioner of the Kansas City Area Council, had earlier suggested the creation and distribution of several Statue of Liberty replicas to all American states and territories, including the Philippines.

The task of choosing the perfect site was delegated to the National Urban Planning Commission, and among those it considered were "Engineer Island, atop the proposed reviewing stand on the Rizal Park, and on the center island rotunda between the Old Legislative building and Manila City Hall."

As the icon of the United States, the replica of Lady Liberty would survive several attacks by student protesters in the 1960s.