longest train - Robuta Search

https://www.statista.com/chart/24638/longest-direct-rail-journeys/

This chart shows the longest direct rail journeys that do not involve changing train (by distance).

https://www.express.co.uk/travel/articles/2150791/longest-train-journey-trans-siberian-railway

Dec 28, 2025 - The incredible train journey is a fascinating once-in-a-lifetime experience.

https://bigthink.com/strange-maps/portugal-to-singapore-train/

Can you travel by rail from Portugal all the way to Singapore? In theory, yes. In practice? Not so much.