Osu Castle

Christiansborg Castle, better known in Accra as Osu Castle or simply "the Castle," is a 17th-century fort on the Gulf of Guinea coast, standing just off the shore of the Osu township in the Accra Metropolitan Area of the Greater Accra Region. The Ghana Museums and Monuments Board (GMMB) records it as a fort, and it is also catalogued as a cultural site, heritage site and museum.

The site's history is layered and contested. In 1661 the Danish governor Jost Cramer obtained the land for 3,200 gold florins from Paramount Chief Okaikoi of the Ga; the Danes had built a stone fort in 1659 to replace an earlier Swedish African Company earthen lodge, naming it Christiansborg, or "Christian's Fortress," after King Christian IV of Denmark. The fort passed between Denmark, Portugal, the Akwamu, Britain and, after independence, Ghana, and was rebuilt and expanded several times. Denmark abolished the slave trade in 1803; the castle was sold to Britain in 1850, and from 1876 British colonial governors ruled from it. It was abandoned between 1890 and 1901 before returning to government use in 1902, later serving as seat of government and presidential office until that seat moved to Jubilee House. In 2017 it was designated for conversion into a presidential museum under Ghana's 60th-anniversary legacy project.

For visitors, the castle's weight lies in what it preserves of the transatlantic slave trade and colonial administration. On-site features recorded by GMMB include slave dungeons, the walkway to the Door of No Return, credential rooms, a photo display of notable Ghanaians and Pan-Africanists, a chapel sometimes used by the Anglican Church, extensive gardens with a variety of plants, a walkway around the gardens, a water reserve, a car park, and nearby excavated sections with artefacts.

The castle forms part of the UNESCO World Heritage listing "Forts and Castles, Volta, Greater Accra, Central and Western Regions," inscribed in 1979 under cultural criterion (vi).

Practical planning is limited by what is currently verified. GMMB publishes entrance fees reviewed on 1 July 2023, in Ghanaian cedis, with separate rates for Ghanaian and non-Ghanaian adults, students and pupils. Opening hours, site-specific contact details, guided tour pricing, and whether a cafe, gift shop or restrooms are available are not verified here, so confirm these with GMMB before travelling. The operator is the Ghana Museums and Monuments Board, reachable at 2 Barnes Road, Adabraka, Accra, by telephone on +233-302 221633 or 221635, or by email at [email protected].