It’s Friday the 13th! It’s the most superstitious day on the calendar. Many consider the day fraught with bad luck and misfortune. It honor of the day, here are 13 interesting facts about the number 13 and Friday the 13th!

1. Did you know many buildings don’t have a 13th floor? Some aircraft do not have a 13th row, and some cities do not have a 13^th Street or 13^th Avenue.

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