The House of Slaves and its Door of No Return (in the background) is a museum and memorial to the Atlantic slave trade on Goree Island. This island lies off the coast of Senegal, opposite Dakar. From the 15th to the 19th century, it was the largest slaves-trading centre on the African coast. Today it continues to serve as a reminder of human exploitation and as a sanctuary for reconciliation. It is an Unesco World Heritage Site.