The Cape Coast Castle in Ghana was built for the trade in timber and gold, later it was used in the trans-Atlantic slave trade.

At that time slaves were a valuable commodity in the Caribbean and the Americas, and slaves became the principle item traded in Cape Coast.

Due to this, many changes were made to Cape Coast Castle. One of the alterations was the addition of large underground dungeons that could hold as many as a thousand slaves awaiting export.

The last point the slaves passed was nicked named the Door of no Return. President Obama and family paid this slave castle a visit.