Vienna to Prague by train
Vienna to Prague by ÖBB Railjet in ~4 hours at 143 mph. Advance fares from $25; RegioJet sometimes offers tickets from $13.
Vicenza to Milan by train
Vicenza to Milan by Italo or Frecciarossa high-speed in 1h41m over 184 km. Regional trains are slower with more stops.
Rome to Sorrento by train
Rome to Sorrento by train requires two legs: high-speed to Naples (Trenitalia or Italo), then the Circumvesuviana local train to Sorrento. ~212 km total.
Rome to Florence by train
Rome to Florence by high-speed train in 1h30m from $12. Regional trains take 3–4.5 hours from $11. Multiple daily departures available.
Naples to Bologna Train: A Comprehensive Guide
Naples to Bologna by train in ~3h49m over 471 km. Standard class from $10.90, first class from $21.90, with sleeper options also available.
Montpellier to Lyon by Train: A Comprehensive Guide
Montpellier to Lyon by TGV in as little as 1h35m. Average journey is 3h41m. Departs from Montpellier Saint-Roch or Montpellier Sud de France.