In 2001, deep in the Australian desert, a single train blocked a level crossing for six minutes: 682 wagons, 7,353 metres of steel and nearly 100,000 tonnes of iron ore, all run by one driver. That record still stands. We unpack where the real size limit of a train lies: why the three-metre super-wide gauge project collapsed, why the longest steam locomotive ever built was cut up for scrap, what happens to the brakes of a seven-kilometre train, and why freight train length is set not by the factory but by the length of a passing loop. From blueprints to iron — the story of the biggest trains on Earth. 🚂

🚂 The 2001 record: 682 wagons and 7.3 km of steel under one man's control
📐 A three-metre gauge with a swimming pool inside the carriage — and why it stayed on paper
⚙️ A locomotive with seven axles in one rigid frame that wrecked the track beneath itself
🧊 Why the head and tail of a long train live in different moments in time
🌙 The night a two-kilometre train set off on its own, with no driver aboard

What's the longest you've ever waited at a level crossing, and how many wagons did you count? Drop your city and the number in the comments 👇