" Another inventor, J. B. McComber, representing the Chicago-Tower Spiral-Spring Ascension and Toboggan Transportation Company, proposed a tower with a height of 8,947 feet, nearly nine times the height of the Eiffel Tower, with a base one thousand feet in diameter sunk two thousand feet into the earth. Elevated rails would lead from the top of the tower all the way to New York, Boston, Baltimore, and other cities. Visitors ready to conclude their visit to the fair and daring enough to ride elevators to the top would then toboggan all the way back home. "

― Erik Larson , The Devil in the White City: Murder, Magic, and Madness at the Fair That Changed America