Christiansborg Castle (Osu Castle)

This whitewashed fortress overlooking the Atlantic Ocean tells the layered story of Ghana's colonial past, with dungeons, courtyards, and government offices housed within its thick stone walls. Built by Danish traders and later occupied by various European powers, the castle now serves as a seat of government while remaining open to visitors keen to understand Ghana's complex history. The rooftop offers sweeping views of Accra's coastline and the bustling Osu neighborhood below.