Sheikh Rukn-ud-Din Abul Fath (1251–1335) commonly known by the title Rukn-e-Alam (Pillar of the World) was among the eminent Sufi saints from Multan, Pakistan. The tomb building is an octagon, 51 feet 9 inches in diameter internally, with walls 41 feet 4 inches high and 13 feet 3 inches thick, supported at the angles by sloping towers. Besides its religious importance, the mausoleum is also of considerable archaeological value as its dome is reputed to be the second largest in the world, after Gol Gumbaz of Bijapur, India.
The mausoleum is built entirely of red brick, bounded with beams of shisham wood, which have now turned black after so many centuries. The whole of the exterior is elaborately ornamented with glazed tile panels, string-courses and battlements. Colors used are dark blue, azure, and white, contrasted with the deep red of the finely polished bricks. The tomb was said to have been built by Ghias-ud-Din Tughlak for himself during the days of his governorship of Depalpur, between 1320 and 1324 AD, but was given by his son, Muhammad bin Tughluq to the descendants of Shah Rukn-e-Alam for the latter’s burial in 1330.