Thank you. Elmina town is a fascinating place; Elmina Castle is the best preserved of about 40 slave castles along the coast of what is now Ghana, along with Cape Coast Castle, built by the Swedes but rebuilt by the British in the 19th century. The main Danish-Norwegian slave castle, Fort Christiansborg, is in the centre of Accra and is used as the seat of the Ghanaian government, so you can't get in or even photograph the outside.
Here is another one of the same scene from a lower viewpoint. The mist is sea-spray from a strong on-shore wind - it creates the contrast between the bright primary colours in the foreground and the pastel colours in the background.