Is Castle of Good Hope haunted?
South Africa Reported haunting level 4 of 5

What actually happened
The fortress functioned as a site of colonial imprisonment and punishment, making its documented human history darker than its later ghost stories.
The history
The Dutch East India Company built the pentagonal fortress between 1666 and 1679. It became a centre of colonial military power, imprisonment and punishment.
What people report
Stories of bells, footsteps and former prisoners persist around the fortress, but its documented history of colonial violence is the darker fact.
That paragraph is reported tradition, not a claim about what is there. The history above it is sourced; the stories are recorded because people tell them.
Visiting
Darling Street & Buitenkant Street, Cape Town 8001, South Africa