The Castillo San Felipe de Barajas in Cartagena, Colombia

The Castillo San Felipe de Barajas (San Felipe de Barajas Castle) is a fortress in the city of Cartagena, Colombia. The castle was built in 1639 and is located on the Hill of San Lázaro in a strategic location, dominating approaches to the city by land or sea. It was originally known as the Castillo de San Lázaro. It was built by African slave labor under Spanish supervision during the colonial era.[1] The fortress was involved in several battles between the late 17th to early 19th centuries between European powers.