Now there are only 365 days in a year, so we don't want to waste them but would there be enough merit to having an annual holiday (assuming it wasn't abused or taken advantage of etc.) to exploring how it would be live in the shoes of someone else in a different culture, country or system of governance etc.?
Imagine a day with the family acting as Scottish nobility, or Russian peasants, doing something similar to what natives might have done hundreds of years ago or even just living as someone else might in a different culture today? Pick a theme and roll with it.
Anyway, that's just an idea I wanted to toss out there.