Coming through the main concourse in Brussels Midi station, there are glances back to earlier eras of this most fundamental symbol of industrial progress – the train.

Yes, a sushi kaiten and a Subway sandwich shop, but also a hotel in the rail dynasty Pullman chain and two Tintin murals: one, in his famous tan mac and plus-fours stepping onto the platform at quaint Moulins Sur Allier, the other, an early pen-and-ink of the reporter in cowboy duds clinging to outside of a speeding locomotive.