Lying just inside the main entrance to the fort, this masterpiece of Mughal architecture is the most significant and attractive of Multan's shrines. A pious and widely loved scholar, Rukn-ud-Din Abul Fatah (1251-1334), commonly known as Sheikh Rukn-i-Alam (Pillar of the World), became head of the Suhrawardiya Sufi branch introduced to the region by his father Baha-ud-Din Zakaria, and is regarded as the patron saint of Multan.

Built entirely of red brick and timber, the structure is not only beautiful but is skilfully executed, with a brilliant mastery of the squinch (a small arch across the corner of a tower masking the transition from square to dome). It is said that the Tughlaq king Ghiyasud-Din originally built the mausoleum for himself in 1320, but that his son offered it as the saint's resting place out of religious duty.