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Nemmeno quello della Torino-Lione lo batte, per appena "cento" miseri metri (e sarà terminato soltanto nel 2030). E anche quello del Brennero (ma ne riparliamo tra quasi un decennio) non sarà così lungo, con i suoi "appena" 55,4 km. Insomma, i "mostri" sotto le montagne sono tanti, ma nessuno come quello della galleria di basel del San Gottardo. Ecco un grafico che elenca le opere più imponenti scavate sottoterra o, meglio, "sottomontagna".
C'è uno scambio di battute celebre sul tema, in un vecchio numero di Dylan Dog, il personaggio dei fumetti Bonelli "detective dell'occulto": "Sono un gallerista di Londra", spiega il protagonista in un'occasione. Ma poi interviene Groucho, il suo braccio-destro-maldestro: "Già, ci occupiamo di tunnel". L'interlocutore non capisce e un po' stupito risponde "Come?". Al che Groucho rincara la dose: "Come sarebbe come? Scavandoli, naturalmente. Il cliente deve solo fornirci la montagna!"
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