9. The Spire Was Installed in About 90 Minutes
To compete with 40 Wall Street, then also under construction, for the title of World’s Tallest Building, the spire was constructed secretly inside the building. On October 23, 1929, four separate pieces of the spire were lifted onto the dome of the building and riveted to each other. The spire was a total of 197 feet, and weighs 300 tons.