Mr Mago asks, à propos my last, what happened to the organ of Notre Dame in the fire. By coincidence, I've had a good insight into that, from finding a reference to Westminster Abbey hosting a virtual reality exhibition from Paris about cathedral's place in history, the fire and its consequences. 

The good news is that the organ escaped the fire, but not the lead-contaminated dust from the collapse of the roof, nor the water. So there's been a complete dismantling, cleaning, re-assembly and re-voicing. So it will resound again.

Not doing touristy things that often around London, I was a bit surprised by the long queues to enter the Abbey, and by how crowded it felt inside. But then, the last time I was there I was a child, so of course it all felt smaller and - dare I say it - somewhat cluttered.

In fact, they've made room in the roof spaces for more clutter, in the Diamond Jubilee Gallery of incidental artefacts - among them the funeral effigies of a number of monarchs (probably the nearest we'll get to an unprettified portrait of some of them).

As for the Notre Dame display - ingenious (well, it's French, after all): a tablet computer that picks up the code for a particular display and presents you with relevant images and 3D animations from various points in the Cathedral. So you're not all crowding round the same display case, or tied to a particular route or speed through the exhibition.

And I don't need to make a trip to Paris to see it!