Europeans thinking a 2h trip is a long ass trip. Then they come visit North America thinking they can visit from coast to coast by car in two weeks.
North Americans going to Europe thinking it'll take 4 hours to go from one city to the next when they can actually cross three whole countries in that time frame.
The most culture shock I've ever experienced was being in southern France, craving some Italian, and realizing I can literally just go to Italy for dinner.
Honestly I blame American TV for this. Especially anything involving the FBI! In Hannibal they zip between states non stop like it's nothing. I assume it's all supposed to be happening over many days, but it just seems like they're going to and from work in Minnesota and home in Virginia lol