Castle of good hope - Torture room Part 3

Hi Guys,
This is Part 3 of our visit to Castle of good hope in Western Province, South Africa. I went solo to the torture room which is at the opposite side from the Dungeon and prison cells. Unfortunately I didn't capture anything just a interesting personal experience. It could have been someone closing something on the upper floors, but this was taken on a Sunday with minimal staff on the grounds, also the sound was very heavy sound like a very big heavy door closing. My camera didn't pick it up unfortunately but have a listen maybe I missed something.

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