Top Ten Friday 13th Trivia 90% of US skyscrapers do away with floor number 13, according to reports by the Otis Elevator Company, the world's largest elevator manufacturers. In 1881, a group of 13 people came together to form The Thirteen Club. Their main objective was to dissipate some of the ominous associations of number 13. The number of members eventually rose to 400 which included 5 US presidents namely, Benjamin Harrison, Grover Cleveland, William McKinley, Theodore Roosevelt and Chester Arthur. It is therefore that Theodore Roosevelt placed the cornerstone for a new county courthouse in New York on...