The main Ottoman-era monument in Hofuf, Qasr Ibrahim is a walled palace-fort dating to 1556, built on much older foundations. The compound encloses a mosque with a distinctive minaret, a palm-shaded courtyard, reception rooms, and a deep well. The architecture is the purest example of Ottoman provincial style in the Eastern Province — arched doorways, decorative brickwork, and carved plaster panels inside the prayer hall.
The palace sits in the centre of old Hofuf near the Souq Al Qaisariya market and can be visited in an hour. The adjacent mosque is among the oldest in the city and remains in use for daily prayers. Entry to the fort grounds is free; the interior buildings may require permission or be closed for restoration at any given time.