Standing 22 stories tall and weighing 13,500 metric tons, Big Muskie was the world’s largest dragline and the biggest machine that has ever walked on the face of the earth. With the boom down, it was almost 500 ft in length. Big Muskie was a coal mining Bucyrus-Erie dragline owned by the Central Ohio Coal Company. It removed more than twice the amount of earth moved during the construction of the Panama Canal. Its bucket could hold two Greyhound buses side by side.