RECORDS UNLOCKED on Instagram: "Meet the 1.2 MILLION Pound Steam Engine! This is the legendary Union Pacific 4014, also known as the "Big Boy" steam locomotive. It is one of the largest and most powerful steam locomotives ever constructed! Weighing in at over 548 metric tonnes (1.2 million pounds), Big Boy was built to haul heavy freight over mountains. At 40.5 meters (132 feet) long, it holds the record for being one of the longest and heaviest operating steam engines today. A true behemoth of