Well, in Europe currently, so guess that's easier. Also will exclude airports, so only 2+ days.
In Africa: 7
In Europe: 15
Asia: 2
But it's a bit of an odd one for most South Africans, e.g. going Johannesburg to Cape Town is the same as Budapest to Paris.
And I would also say e.g. Germany, going Berlin is different to Munich, it's big, or France countryside vs Paris, or Venice vs Rome.
Still interesting how stamps are slowly going to disappear since everyone is going electronic. My European passport has no stamps, yet it's the most countries I have visited.