The opening sequences of the module were shot in central London, outside the Palace of Westminster, and in Trafalgar Square. The Rockeby Venus is still on display in the National Gallery; it was restored and returned to public display after "Slasher" Mary's hatchet attack.
The final sequence was filmed in the disused armaments factory at Priddy's Hard, in Gosport, Hampshire. It's an evocative site, with each ruined shed separated from the next by high embankments in case of explosions.
Priddy's Hard is closed to the public, but Gosport boasts numerous visitor attractions.
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