A significant remnant of the Gupta era, the Allahabad Pillar is one of the many pillars set up by the Mauryan emperor, Ashoka. This polished sandstone spire hones inscriptions from the Samudragupta and Jahangir era; the 4th BCE and 17th century respectively.
However, the Allahabad Pillar was further shifted from its origin to Akbar's Allahabad Fort, which is a present-day army land. Thus, visitors would need prior permission before visiting the Allahabad Pillar.