Introduction to Elmina Castle: Elmina Castle was built with the blood, tears and bones of countless black people. Groups of European colonists and adventurers flocked in. They first plundered gold, and then carried out slave trade crazily. The castle evolved into a slave market. Therefore people called it "Elmina Slave Fort". There are 6 satellite square bastions on both sides of the main building forming a defense system. The castle is lined with cannons overlooking the sea and the residential area of ​​the town of Elmina. There are warehouses, arsenals and lookout posts in the courtyard, as well as deep wells for emergencies.