Ester 7:9

9 Then Harbona, one of the eunuchs attending the king, said, "A pole reaching to a height of fifty cubits That is, about 75 feet or about 23 meters stands by Haman's house. He had it set up for Mordecai, who spoke up to help the king." The king said, "Impale him on it!"

9 Then said Harbonah, one of the chamberlains that were before the king, Behold also, the gallows fifty cubits high, which Haman hath made for Mordecai, who spake good for the king, standeth in the house of Haman. And the king said, Hang him thereon.