N. Korea says U.S. approval of S. Korea’s nuclear subs drive sparks ‘nuclear domino’ | Yonhap News Agency Like this:Like Loading... Post navigation TIL the longest freight train ever was 7.353 km (4.57 miles) long. It consisted of 682 ore cars pushed by 8 powerful diesel-electric locomotives. On 6/21/2001, the train travelled 275 km (171 miles). The train was also the heaviest ever, weighing 99,732.1 metric tonnes. It had 5,648 wheels.I could make you the best game in the world