Delhi. I’m pretty sure there was a topic about it, but I’m getting sleepy, sooooo...
https://search.brave.com/search?q=iron+pillar+in+india&summary=1
Yes, that was it. I remembered it was on a show I saw it, but couldn’t remember name of show lol. Anyways, it is a pretty cool obelisk that Nas stood for a long time without rusting significantly