It's one of Cornwall's most distinctive landmarks, but it's also one of the newest.
This weekend Truro Cathedral is celebrating 125 years since it held its first service.
Our reporter Kathy Wardle has been looking back over the building's history:
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Wednesday will be wet to start with and will remain overcast for much of the morning, perhaps with mist and hill fog for some.
Wednesday will start damp and cloudy, perhaps with mist and hill fog for some.
A light breeze winds across the region, with clouds and rainy spells. There may be mist or fog in places.