Edinburgh's Giant Advent Calendar

on General Register House every evening until Xmas, a different year in each of the 25 windows.  Tonight it was 1954.
More information here and you can see all the past animations.
http://www.edinburghschristmas.com/whats-on/edinburghs-giant-advent-calendar

(Thanks to Teasel for originally pointing this out here
https://www.blipfoto.com/entry/2382665091741911846
and we went to a talk at HES about the making of it last week)