[Boudica]

From what I've been reading, it's widely contested how this happened, from vandalism to the lightening strike story.

I certainly agree.

The lightening could've hit anywhere, but no, It selected the main facet of the building. Personally, I'm leaning towards vandalism.

Yeah. Lightening tends to aim for a good conductor. A brick wall is not a good conductor. It's not impossible, but I have my suspicions.