BBC Rewind: Norwich hospital chimney demolished in seconds
Archive footage captured the moment a controlled explosion demolished a former hospital's 200ft (61m) chimney.
The structure at the old Norfolk and Norwich Hospital was reduced to rubble in about 10 seconds in August 2003.
It was a noticeable feature of Norwich's skyline for nearly 40 years and people gathered to watch it topple.
There is much more archive footage from the East of England on BBC Rewind.