'Threshing floor' in the Bible

So Solomon began construction of the LORD's Temple in Jerusalem on Mount Moriah where the LORD had appeared to his father David, that is, where David had prepared Ornan the Jebusite's threshing floor.

Now the king of Israel and King Jehoshaphat of Judah were each sitting on their own thrones, arrayed in their robes, and sitting on the threshing floor at the entrance to the city gate of Samaria, and all of the prophets were prophesying in front of them.