Dar Othman was built by Othman Dey in the early 17th century. His business - piracy - was obviously lucrative, and he also happened to be Governor of Tunis. The palace is a wonderful example of period architecture, distinguished by its exuberantly busy façade. Some rooms are now offices (some to the Conservation de la Medina organisation), but you are welcome to visit the courtyards. The unusual interior garden was planted in 1936.