Elmina Castle is a historic fortress located in Ghana, built by the Portuguese in 1482. It was originally constructed for trade, particularly in gold, but later became a significant site in the transatlantic slave trade. The castle features thick stone walls and a strategic position overlooking the Atlantic Ocean. Over the centuries, Elmina Castle changed hands between various European powers, including the Dutch and the British. Today, it stands as a UNESCO World Heritage Site, attracting visitors who seek to learn about its complex history and the impact of colonialism in West Africa.