Esther 7:9

9Then Harbonah, one of the eunuchs attending the king, said: “There is a gallows fifty cubits high7:9 50 cubits is approximately 75 feet or 22.9 meters high. at Haman’s house. He had it built for Mordecai, who gave the report that saved the king.”

“Hang him on it!” declared the king.