Monday can be a difficult day for museum travellers.
In some cities, many museums are closed at the start of the week, which can make planning surprisingly awkward. In other places, there are still enough galleries, historic houses, cultural centres, or smaller museums open that the day works perfectly well.
I think this is one of those practical details that can make a big difference to a trip. A city with good Monday options is useful for weekend travellers, long layovers, and anyone arriving after a busy Sunday.
Have you visited a city where Monday was still a good museum day?
Which places stayed open, and did it change how you planned the rest of your visit?