Some train lines exist to move people efficiently. These ten exist, as far as anyone can tell, to be looked out of. All of them are ordinary scheduled services — no tourist surcharge, no special carriage, just a seat and a window.

The ten

The best window seat in Europe costs about the same as an airport sandwich.

How to book them well

Most of these are regional services where reservations are unnecessary and you simply turn up. The exceptions — the Glacier Express, the Bernina Express in its panoramic carriages, and Norwegian long-distance trains — require booked seats and sell out in summer.

An Interrail or Eurail pass makes sense if you are doing four or more of these in a fortnight, and does not if you are doing two. Point-to-point fares in Portugal, Serbia, Italy and Scotland are low enough that the pass rarely pays for itself.

Which side to sit on

Douro line from Porto: right. Bergen to Oslo: either, it alternates. Bernina southbound: left for the Brusio spiral viaduct. Kyle line westbound: right, for the lochs. Belgrade to Bar southbound: right, for the Mala Rijeka viaduct, which is two hundred metres above the valley floor.

Bring less than you think, buy the coffee at the station rather than on board, and put the phone away for the first hour. These are among the last forms of transport that improve when you pay attention to them.

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