'High' in the Bible

Now on the third day, Esther put on her queen's robes, and took her place in the inner room of the king's house, facing the king's house: and the king was seated on his high seat in the king's house, facing the doorway of the house.

Then his wife Zeresh and all his friends said to him, Let a pillar, fifty cubits high, be made ready for hanging him, and in the morning get the king to give orders for the hanging of Mordecai: then you will be able to go to the feast with the king with a glad heart. And Haman was pleased with the suggestion, and he had the pillar made.

Then Harbonah, one of the unsexed servants waiting before the king, said, See, the pillar fifty cubits high, which Haman made for Mordecai, who said a good word for the king, is still in its place in Haman's house. Then the king said, Put him to death by hanging him on it.

And all his acts of power and his great strength and the full story of the high place which the king gave Mordecai, are they not recorded in the book of the history of the kings of Media and Persia?