Either a country in the Old World or overseas that's not in the Americas.
https://www.statcan.gc.ca/tables-tab...rts37a-eng.htm
In 2016, there were 19 million visits from Canada to the US, 2 million to Mexico, and the UK and France both have more than 1 million each.
Some other destinations in the Old World like Germany, China, Italy and Spain have about a half million visits too.
If those are the stats for one year, add in the fact that over 20 % of Canadians are foreign born (and mostly not from a nearby country like the US or Mexico, but in fact overseas and now mostly from Asia), isn't it likely that a majority or half of all Canadians have visited the "Old World"?
Could it even be a large majority?
Notably, it seems like Canadians are more likely to travel to the Old World than Americans.
"In 2016, a total of 66,960,943 U.S. citizens traveled outside the country."
"For the most part, these travelers didn’t stray too far from home; more than half of the year’s international travelers — 37,403,398 to be exact — stayed within the confines of North America"
According to:
https://thepointsguy.com/2017/01/rec...d-abroad-2016/
So roughly 33 million or 10% of the US population travelled to a location outside North America, while adding up all the old world locations for Canada gives several million -- well over 10% of Canada's population.
We don't know how much is repeat visitation though.
Travel by Americans to the UK and France also seems like only generally in the range of 2-3 million annual visits, while Canadian visits to the UK or France number over 1 million. Basically, for a country that is nine or ten times as populous, the US only travels to the UK or France twice as much as Canadians do (meaning proportionally many more Canadians visited them).
It also seems to be my impression that urban Canadians (even accounting for non-immigrants) are much more likely to visit the place of their origins/roots than Americans, like the UK, France, Italy, China, India, even if they are not first generation.