There was something called the Europass back in the 70’s/80’s. I never knew that went away.

I so hope this actually works and the ticket is reasonably priced and pet friendly.

Last year I traveled by train from Paris to Berlin, and I was surprised by the lack of coordination between the two countries’ rail systems. Everything from buying a ticket in the first place to figuring out what to do when one of the trains was rescheduled.