World's largest steam locomotive restored successfully (1/3)

The Union Pacific Big Boy, the world's largest steam locomotive, is seen in Texas, the United States, Aug. 18, 2021. The Big Boy steam locomotive, which is about five meters tall and 40 meters long, was originally built in 1941. It is currently traveling around the United States after a massive restoration. (Photo/VCG)

The Union Pacific Big Boy, the world's largest steam locomotive, is seen in Texas, the United States, Aug. 18, 2021. The Big Boy steam locomotive, which is about five meters tall and 40 meters long, was originally built in 1941. It is currently traveling around the United States after a massive restoration. (Photo/VCG)

The Union Pacific Big Boy, the world's largest steam locomotive, is seen in Texas, the United States, Aug. 18, 2021. The Big Boy steam locomotive, which is about five meters tall and 40 meters long, was originally built in 1941. It is currently traveling around the United States after a massive restoration. (Photo/VCG)