The caves at Iraq al-Amir are cut into the limestone cliff above the village and were in use long before Qasr al-Abd was built. They are a more intimate encounter with the ancient world than the reconstructed palace: rough hewn, immediately tangible, and with Aramaic inscriptions still visible in the stone. The name 'Tobiah' carved near one entrance is thought to be one of the oldest surviving inscriptions in Jordan.
The caves were used for storage, stabling, and possibly residence at various periods. The cliff setting, with the green Wadi Seer valley stretching below, makes for a good walk. You can combine the caves with the palace in a two-hour visit. The road down from the plateau passes a good view over the valley.