Early earthworks and tumuli are numerous in the locality.
Ancient tombs with fragments of vases have also been found, and there are cases which have been used as primitive tombs or dwellings, and a group of some fifty tumuli near Altamura.
(1389-1403), and some tumuli on the south, popularly called the tombs of the Thracian kings.
Many tumuli are visible round Mold.
To the south-west of the picturesque belts of palm trees which stretch inland from the northern coast of Bahrein, is a wide space of open sandy plain filled with gigantic tumuli or earth mounds, of which the outer layers of gravel and clay have been hardened by the weather action of centuries to the consistency of conglomerate.