Tomb of Absalom

The Tomb of Absalom, also called Absalom's Pillar, is an ancient monumental rock-cut tomb with a conical roof located in the Kidron Valley in Jerusalem, a few metres from the Tomb of Zechariah and the Tomb of Benei Hezir. Although traditionally ascribed to Absalom, the rebellious son of King David of Israel, recent scholarship has dated it to the 1st century AD.

The tomb is not only a burial structure in its own right, with its upper part serving as a nefesh for the tomb in its lower part, but it was probably also meant as a nefesh for the adjacent burial cave system known as the Cave or Tomb of Jehoshaphat, with which it forms one entity, built at the same time and following a single plan.

Source: Wikipedia