'High places' in the Bible

For a fire has gone out of Heshbon, a flame from the town of Sihon: for the destruction of Ar in Moab, and the lords of the high places of the Arnon.

And in the morning Balak took Balaam up to the high places of Baal, and from there he was able to see the outer limits of the people.

See that all the people of the land are forced out from before you, and put to destruction all their pictured stones, and all their metal images, and all their high places: