Quote Originally Posted by Flixy View Post
Yes, but if you are on a train? You can only tell by the signs on the next station, really. Well, maybe a bit different building style next to the tracks before that, but that can also occur at other places than the border.

Though if you take a train from the Netherlands to Belgium, it rides on the right track in the Netherlands and on the left track in Belgium. But that's not the case at all borders!
The messages your mobile provider sends you about tariffs in the new country.