The Castle of Good Hope known locally as the Castle or Cape Town Castle is a bastion fort built in the 17th century in Cape Town, South Africa. Originally located on the coastline of Table Bay, following land reclamation the fort is now located inland. In 1936 the Castle was declared a historical monument and following restorations in the 1980s it is considered the best preserved example of a Dutch East India Company fort.

More details: https://en.wikipedia.org/wiki/Castle_of_Good_Hope