The river flows...

[m1903a3]

So I'm in the main station in Berlin, waiting for a train to Regensburg for a holiday with my former housemate. An Asian man asks me (in German) if I know where the train to Prague departs from. When I told him Track 1, he said it wasn't there or on the departure sign at the track. I walked him over and pointed to the sign. He says he's looking for "Prag" (Prague in German) and not Praha. (At this point he's virtually standing under the sign.)

I explained it was a Czech Rail train, not DeutschBahn, so the destination sign was in Czech, not German

Praha hl.n was the Prague main station. (Praha hlavní nádraží)

I love rail travel in Europe, but many of the Intercity Express trains cross borders, so you need to be alert to the fact that signage is often in the language of the train's country, not the country you happen to be in at the moment.