For my education I applied for a abroad internship. My German language grades where outstanding compared to the average (so still mediocre I think haha), last minute I got a internship assigned in Austria. At that time I was a cigarette smoker. The first stint from Utrecht to Frankfurt I traveled via a highspeed train. Quite an experience, the tracks next to highways the cars stood still compared to the train, at that time in Germany there were a lot of highways without speed limits so a lot drive 100+ miles or 160+ km's an hour. If I remember correctly the high speed train was all non smoking. The last stint to Austria I traveled via "regular" train and couldn't book a "normal" seat anymore, so I sad in the smoking area of the train. I have never sat in a more reeking place, for my nose it was the most awefull place it had visited. The gentleman next to me was smoking Camel cigarettes, lighting the next cigarette with the ember of the previous one. Somehow I didn't light a cigarette the 5 hours in that train, never had the need to I think. I also traveled by air when smoking was allowed in the back part of the plane, but I was only about 10 years old, so can't remember.
When now smoking a pipe or a cigar a distinguished smoking lounge like Jesse posted would be awesome, but in today's society (next to rail companies thinking it's a waste, look how much "normal" chairs would fit into it!) in most countries it would be a no go. I love traveling by train, a acquaintance of mine has traveled a lot of long distance train rides like the Trans Siberia Express several times (connected from Beijing to Hanoi) and The Ghan (Australia) and that's something I want to do when my sons grow up.