The National Museum of Slavery sits along the coast in Morro da Cruz. The National Institute of Cultural Heritage founded the museum in 1977. It stands inside the Capela da Casa Grande, a 17th-century estate. A major slave trader originally owned this property.

Traders forcibly baptized captured Africans at this chapel before shipping them to the Americas. Today, the museum protects this vital national memory. Visitors can view historic artifacts, shackles, photos, and documents. These pieces tell the heavy history of the transatlantic slave trade in Angola.