Italian trains connect cities. The BEST Italian trains connect landscapes. The Cinque Terre line punches through cliffs with 5-second bursts of turquoise sea. The Bernina Express crosses the Alps from Italy to Switzerland at 2,253m. The Circumetnea circles Etna through lava fields and almond groves. These 10 routes are not transport — they're moving paintings.
1. La Spezia→Levanto (Cinque Terre line, 25 min, €4): Tunnel-sea-tunnel-sea-tunnel-sea — 5 villages appearing like visions between cliff tunnels. Sit on the RIGHT side (sea side). The cheapest scenic experience in Italy. 2. Tirano→St. Moritz (Bernina Express, 4h, €55-75): Italy to Switzerland over the Bernina Pass at 2,253m — glaciers, spiral viaducts, the Landwasser Viaduct. UNESCO World Heritage railway. Book on Trainline or rhb.ch. 3. Circumetnea (Catania→Riposto, 3h, €7): Narrow-gauge railway circling Etna — lava flows, pistachio orchards, views of the smoking crater. The quirkiest railway in Italy.
4. Naples→Sorrento (Circumvesuviana, 1h10, €4.40): Not beautiful at first (Naples suburbs) but the final 20 min — Vesuvius above, the Bay of Naples below, Capri appearing — make up for everything. 5. Bolzano→Brennero (Brenner route, 1h, €7-12): Through the South Tyrol — castles on hilltops, vineyards on slopes, the Inn Valley opening to Austria. 6. Palermo→Agrigento (2h, €9): Through Sicily's interior — abandoned villages, golden wheat fields, the most "un-touristy" train in Italy.
7. Rome→Calabria coast (Regionale, 4-5h): After Naples, the train hugs the Tyrrhenian coast — Paola, Amantea, Pizzo, Tropea visible from the window. The cheapest coastal cruise. 8. Trento→Malè (Val di Sole, 1h, €4): Through apple orchards and Trentino valleys toward the Dolomites. 9. Cagliari→Mandas→Arbatax (Trenino Verde, 5h): Sardinia's tourist railway — narrow gauge through mountains, cork forests, and the wild interior nobody sees. Runs summer only. Book on treninoverde.com. 10. Florence→Faenza via Marradi (Faentina line, 2h, €8): Through the Mugello and Apennine tunnels — chestnut forests, medieval villages, the line Dante may have walked in exile.