Sarah Marks, of London, looks out at the Italian countryside on TrenItalia's Intercity Notte sleeper train from Palermo to Rome, on June 10, 2023. A growing number of climate-conscious Europeans are giving up flying in favor of long-haul trains. (Sarah Marks via AP)
This image released by ÖBB shows a Nightjet sleeper train at a station in Vienna, Austria. A growing number of climate-conscious Europeans are giving up flying in favor of long-haul trains. (Marek Knopp/ÖBB via AP)