A number of tombs belonging to the Roman necropolis were discovered in 1883.
The tombs of their inhabitants are of two classes - the so-called tombe dei giganti, or giants' tombs, and the domus de gianas, or houses of the spirits.
It contains among other tombs that of John Hunyady.
He crossed the Tigris, destroyed the towns and spoiled the tombs of Arbela; but when Artabanus advanced at the head of an army, he retired to Carrhae.
The crusaders did something to develop it by establishing a bishopric with a large church, which still exists (as a mosque); here were shown the tombs of Elisha, Obadiah and St John the Baptist.