![Friday the 13th - 9 things you may not know about this superstition-filled day — Modern Mississauga Media Friday the 13th - 9 things you may not know about this superstition-filled day — Modern Mississauga Media](https://images.squarespace-cdn.com/content/v1/56569c54e4b06edc0ac0c135/1523626102606-UZXEX9R6GJSUBEJICUEZ/bc100HR.jpg)
Friday the 13th - 9 things you may not know about this superstition-filled day — Modern Mississauga Media
Liberty Elevator Experts - Did you know? . Since the number is considered extremely unlucky, a lot of buildings opt to remove the 13th floor from their floor plans. Otis Elevators Company
![This elevator buttons uses negative values instead of “B” for basement levels. : r/mildlyinteresting This elevator buttons uses negative values instead of “B” for basement levels. : r/mildlyinteresting](https://i.redd.it/8ezp0ywhcz741.jpg)