Saw in the paper a few days ago, that the Parliament building in London is in serious need of renovation. Bad roof, ancient wiring, and similar issues. Wiring probably done back when they used ferrets.
Same in Vienna, but probably no ferrets. I've seen pictures of exposed K&T in utility areas! Apparently driving huge arrays of incandescent bulbs used both to light the plenary and to melt any snow and ice from the glass roof.