Ooh, that museum does look cool! (Especially as someone who fell off being current in anime around 2008....)

Glad to hear that someone is still sensible about masks (and not at all surprised it's Japan) - taking it off for a photograph on one's own seems reasonable really. Around here I've tried to time my grocery shopping trips to the times and places when the old Asian ladies do theirs, as they are the single demographic still masking up in pretty much all scenarios.

Enjoy your travel!