I have fond memories of train trips. Travelled all over Europe in them. Lots of memories...stopping in the middle of nowhere as a couple of French thieves pulled the stop cord and hopped off the train followed by guards on the way to Marseille. Waiting for a Turkish engine to replace the Greek one in no mans land with machine guns pointing at us from guard towers on the way to Istanbul. Having to quickly switch carriages to avoid going into East Berlin as we were on the wrong part of the train without the correct papers when the Berlin wall was still a thing. Being used as an ashtray while sleeping on the floor travelling through former Yugoslavia (not so fond...but memorable). I loved waking up in a new country and I really liked the old carriages with corridors where both seats pulled out and formed a massive bed and the doors were manual and you could open them and catch a breeze while the train was moving.