Visitors to the courtyard of the complex’s Quwwat-ul-Islam Mosque will immediately spot an imposing 7.2-meter, six-ton iron pillar with a decorative top that’s even older than the complex.

Arab travellers and scholars took the theories and concepts to the West. Can an iron pillar stay exposed to the harsh elements of nature for centuries and yet not rust? Standing tall in Delhi ...

In the courtyard of the Quwwat-ul-Islam Mosque, an imposing iron pillar rises tall. At 7.2 metres and weighing six tons, this structure predates even the complex it resides in. Dating back to the ...