I became very familiar with the outside of the station, though can't remember ever taking a train from or to it, in 1975, when for several months I had business at the (almost adjacent) Old Bailey (as in the nickname of the Central Criminal Court, specifically, not just the street of that name). Many an afternoon, after the day's "work" was finished, I'd go down the hill with some others, down a cut-through under the tracks, to get to a Dunkin Donuts on Farringdon Street for a debrief. So the environs of the station felt like a home-from-home for a while. And in the years shortly after that, alongside the bombsite area on the south-east corner of Ludgate Circus, under the railway arches immediately south of the bridge over Ludgate Hill, there was a restaurant which did fine vegetarian lunches (where I often met a friend who worked in an office round the corner for lunch) - they sold pots of yogurt the type of which I've never found anywhere since, despite almost 40 years of searching... So, Holborn Viaduct station has played memorable parts in my life even without my using it for travel purposes.