Take a journey across four continents to discover more about the transatlantic slave trade which saw twelve million slaves taken out of Africa and two million killed. The journey begins in West Africa, with visits to ports in Benin, Ghana, Senegal, and the Cape Verde Islands from where slaves were shipped across the Atlantic. Follow their path to the Americas, with visits to sugar and cotton plantations formerly worked by slaves in Brazil, the United States, and the Caribbean. Next, visit the City of London, home to England's most famous companies and institutions that both profited from the slave trade and helped abolish it. Finally, visit carnivals in Rio de Janeiro, Trinidad, and London to celebrate the cultural legacy of slave culture.